The Day The Hits Just Kept on Coming!

It started off as a normal day: Oil calls, tray table latches, some minor avionics issues. Then, suddenly the tide started to change:

We got a call to look at a First Officer R2 window. The pilot was complaining that the window was "hazed". The mechanic decided to change the window which is only a 10 min job. The trouble started when the "H-Number" on the window which was removed did not match the H-Number of the window being installed.

Typical 737 Flt Deck windows (swa corp security safe pic)

This is a normal situation and as some of you know when these number do not match we have to change the wire position on a terminal block behind the window heat controllers which are located in the E/E Bay (in the belly of the beast).

This job used to be a simple annoyance: remove the window heat controller(s) so you can see the terminal strip, remove the wire and place it onto the correctly number terminal. Of course that is how you would do it on a 737-300 or "Classic" model airplane.

window heat controller (got this pic off ebay-scary) (swa corp security safe pic)

Boeing in its infinite wisdom decided to relocate this terminal strip on the 737-700 or Next-Gen aircraft. This strip is now located behind the forward wall on the forward cargo compartment. Keep in mind that in this instance we are working on a "live flight". This plane has passengers who are trying to get places. When the plane has passengers it will also have luggage. Where do we keep the luggage?-Forward cargo compartment.

So the mechanic had to troubleshoot to a point where he decided to change the window, make sure we had a window in stock, get the window in, and change the "taps" to the correct terminal spot. What do you think happened while he was troubleshooting and changing the window?

Terminal block similar to the one I'm talking about (swa corp security safe pic)

You guessed it, the rampers loaded the luggage into the forward cargo pit. So now he has to explain to the rampers that he needs the bags removed so he can access the wall, take the wall down, and do what he needs to do. Usually this is not a problem but lets face it the rampers are not too keen on unloading the bags they just loaded and it takes time.

So now we are on delay. In about 10-15 mins the mechanic has created a luggage hole or cave big enough to get to the wall.

The wall is now off but just to make sure you really want to accomplish this task Boeing decided to hide this terminal strip behind an angled structural piece which holds said wall up. To reach it you do it blind, once you can establish you are one the correct terminal strip.

These are the things that drive mechanics crazy. New plane-it should be designed in a way to help us do our jobs easier.

That's not the end of that story either. Once done and about 40 mins into a delay there was a problem with the new window (paperwork type problem) which almost required the mechanic to put the old window back in place doing this whole dance over again! In the end the paperwork question was cleared up but only after another hour was wasted by calling Engineering and all the important people in Dallas.

The next hit to us was self inflicted (by flight crew). The entry door got stuck on the jet bridge extendable canopy. Happens all the time. The OPS people usually will call MX and we can easily unstick it. This time the Captain did not want to call us, he told the OPS person to just move the jet bridge back.

L-1 Door (swa corp security safe pic)

The jet bridge moved back and the hinge and guide arm on the door got all bent up. I've changed guide arms and usually it can be done in about an hour but that hinge (hinge plate actually) is another story. We grounded the plane and I and another Mechanic worked on it for the rest of the shift. It turns out that to replace these hinge plates the door has to be removed from the plane! Last time I removed a door form an airliner was way back in my Delta Airlines days.

We get off shift at 10pm and as a cherry on top of our great day two planes struck winglet to winglet right around 9:30pm. The airplane gods were not happy that day! The only silver lining was that none of the "Damage Events" (sounds like a movie on SciFi Channel) were caused by maintenance.

Winglet (swa corp security safe pic)

Old Timey Maintenance

For a while now I have been collecting pictures of aircraft maintenance from back in the day. It facinates me. The pictures demonstrate how far we have come but in many ways also show how little has changed. I figured I would put some of these up for you guys to check out.

The old prop-liners were cool and the Connie was the coolest of them all. Check these guys out wearing their white coveralls. It looks to me like they have some kind of radar issue but whats funny is that even today we say "one guy working, two just watching". Some of the ground equipment even looks the same as the stuff you would find at any airport these days.

A patch from a mechanics hat from Wilmington-Catalina Airlines. Even back in the day we wanted to be recognized as mechanics, not rampers. Today there is a struggle-mechanics want to stand out, not be confused with other ground crew. How many times have I gone up to the flight deck to be handed the landing gear pins or the fuel slip by the captain because he thought I was a ramper or fueler. I know it's cost effective for companies to have everyone have the same uniform but every mechanic wants to be recognized as such.

Look at these poor bastards!! Look at those ladders and no safety lines or lanyards. The term "back when men were men" comes to mind. Imagine having to climb up that ladder with tools or heavy parts. Think any of them had a fear of heights? These days the heights may not be as great but they say a fall from even four feet could kill you. Remember that these days we do have to put ourselves in some crazy positions to fix these planes. Walking the crown looking for lightning strikes, RRing rudder PCUs, working out on the wings. The dangers are still prevalent.

 

This is actually an old picture. It was taken during WWII, and yes they had color photography back then. This is an awesome pic that shows that women have been involved in our industry from way back in the day. Even prior to WWII women did the majority of work on the fabric of fabric covered planes. It always amazes me when people are shocked that we have female mechanics at our job. As a matter of fact one of the best students at my A&P school was a woman. She already had a job lined up working in an auto garage and could work circles around us guys.

The last one for today is not an airplane but it does have a lot of similarities. Hatches are open, tools are being used, etc. These guys are hard at work on this old locomotive. I wanted to include this pic because of the dirt and grime. I don't think this was a staged shot. There is grease and dirt all over these guys and this is what maintenance is actually like. We have a dirty job, some nights you make it through and you are not too bad off, but other nights you are filthy. The dirt and grease get everywhere. Also this demonstrates that the chemicals that we use to keep our equipment (trains or planes or cars) running gets onto us and, let's face it, is slowly poisoning us as we work. It is an unfortunate by product of doing the job we love.

The Legend of ...........

I'm going to start a new series about "The Legend of......." This will be about mechanics that I have met and worked with who have made a lasting impression on me and others. Also since it is the holidays I have been away from the blog for a bit but I will try to keep it going and will resume with regular additions after the new year so thanks for your patience.

My buddy SkyWalker suggested this subject and even the person to start with!! Thanks brother!

The legend of Don Tripp.

Don Tripp used to work with us in Oakland. When I first got the job Tripp was already working there. He was a former Marine and you could tell he was a larger than life type of guy. One of my first memories of Tripp was one midnight shift when I was working at gate 17 doing an Service Check. Tripp was working all the way at gate 25 which is pretty far away in Oakland. I was outside doing something when I hear "FUUU@@@%%%", followed by sparks moving rapidly away from the tail of the plane on gate 25. Tripp was working on an APU, up on a stand and things were not going well. As per his character he was screaming and the sparks were his open end wrench which he threw in his frustration.

Tripp was the quintessential Marine. He told you what he thought and did not give a damn about what you thought. To be honest when I first started here I was intimidated by him. I knew he was tough and I was still new to this whole Line MX game.

For a while we Oakland Mechs were going to San Jose for one Service Check and any MELs and then onto San Francisco for any MEL issues. We did this with a bread truck stocked with parts and able to carry any additional things we would need for the trip. We all took turns going down to San Jose but after a while the same few guys would go. Tripp was one of those guys. He liked to travel and do the non-scheduled work involved in that type of job. Tripp had worked in San Jose at his previous job and had famously stood at the open R-1 door of an MD-80 as it was being tugged from the remote parking to the gate wearing nothing but his combat boots! (Since it was his last day there it seemed like the thing to do.)

Tripp would do things like pounce on crickets and catch moths and then shove them into his mouth and eat them, apparently they taste like peanut butter. Tripp wore old school marine corps shorts that were wayyy short and always a Hawaiian shirt for I.D. pictures.

Tripp was a pretty good mechanic but I'm not sure how he would survive in this day of computer-jet. He was definitely an old school, old-iron, hit and beat it until it worked type of guy. He went through Mag-Lites regularly simply because he beat them to death.

The man had no type of table manners and in fact often had a box of Entemanns chocolate donuts for lunch followed by a carton of milk. He chewed and talked with his mouth open and cussed like the marine he was. While he worked in Oakland he dated a woman who ran an escort service and lived in a condo with little furniture but for some reason it had a barbers chair in it. He collected frogs, and adult movies.

By the time the end came for Tripp he had become a close friend. I respected him and appreciated his I am what I am ways. The end was not very graceful for Tripp and it was full of controversy. He was put in a bad spot by a person he thought was a friend and that made him go over the edge. The early days at Oakland maintenance could not be considered complete without Tripp and I will not soon forget his honesty with everyone and his interesting troubleshooting methods (remember the Mag-Lites?).

I think that knowing Tripp during my early years of Line Maintenance helped to sculpt me and in many ways helped me to find my voice and realize that I could also speak up and say what I thought also. We miss having Tripp here and I wish him well wherever he may end up.

The 737-800 Finally Routed Through OAK!

We have been preparing for months now and it seems like OAK is the last station to get a regularly scheduled line for the 800 but it has finally arrived. Once a day from OAK to DEN. The first one came in on a Sunday and it was met by all the enthusiastic employees taking pictures etc. This kind of surprised me since we had the plane come through once before as a diversion from SFO. I thought maybe the fanfare would die down but it did not.

The mechanics were (of course) not all that happy but we did go out and meet the plane. In addition to the new plane we at SWA are switching to TRAX for our maintenance software program. The TRAX system has been, how should I put this..........problematic. The system itself is supposed to be better than the old one we are used to (WIZARD) and how could it not. WIZARD is a DOS based program but we have been using it for so long that we all know how to move around in it and it makes sense to us. This TRAX thing is a WINDOW based program and it operates as such. You would think that it would be easy to use but it's not.

One TRAX write up can take as long as one hour to input into the damn thing! The mechanics have been slowly using TRAX as our older -700s are switched over to the system. Each night we get one or two TRAX planes to work, but the paperwork as far as entering into the computer seems like a nightmare. Make a long story short-we dread having ANY write ups on TRAX planes.

The -800 came into gate 30 so I along with a few other mechanics walked over to check her out. All the rampers, ops, csa's were busy snapping photos of the plane and we mechanics went right over to the wheel well and did our oohs and ahhs. Pointing out the little differences here and there we noticed the larger hyd return filters and the difference in the main wheels. I also opened the E/E bay and peeked around, not much changed. When I opened the forward E/E door I was amazed by the size of the weather radar RT. The old RT (Receiver/Transmitter) was a big black box about the same size as an IRU unit, lets say 15" x 15" and weighs about 25lbs. The new box is a standard small smart box, about 3" x 15" and it has to weigh less than 5lbs.

Going up stairs the interior is beautiful!! I really like the "Sky" interior although I have heard that the materials that make it up are not standing up to the beating our passengers put it through. Of course while I'm poking about I hear over the radio that the captain on gate 30 has a write up she wants to talk to us about.

Immediately I'm thinking "great, this thing may be down for this stupid write-up". All our TRAX planes that have write-ups have to be signed off, and the paperwork (log page) entered into the computer before the plane can be dispatched. The release for the plane is locked until the computer work is done. As I stated earlier it takes forever to input these things into the system.

When I got to the flight deck the captain tells me she had an overspeed and that she wrote it up. Then she tells me that there is an open write up in the book from the last flight crew about the same thing!

Now I'm almost in a panic! Two write-ups on a TRAX plane which by the way is also an ETOPS plane, one of which is an open write-up! I called MX-CTRL and they told me the overspeeds on the -800s are a nuisance fault and I could sign it off as 'Info noted by MX".

I immediately brought the pages back to the office and handed them to the Foreman. He immediately got on the phone to find out how to enter the log pages into TRAX. Luckily he got back to me and said that the "INFO ONLY" write-ups don't need to be entered-PHEW!

I think we will work out our issues with TRAX and to be honest the -800 does not scare me as much anymore. The -800 is the future of SWA, as well as the 737 MAX, and the sooner I get used to it the better.

Planning

You may not think of planning when you think of aircraft maintenance but a good mechanic is a good planner. Of course you can see that planning is involved when you are disassembling an item, in order to get it apart and back together again. When going to a gate call at work a good mechanic will try to bring with him or her all the parts or tools needed. Sometimes this is easier said than done due to the intentionally vague descriptions of problems that some pilots report.




With proper planning the evenng clouds will be the most dramatic part of your day


The worse gate calls to deal with are what we call "cockpit chats". When a crew calls you up to the plane to chat it can mean anything. Hard to plan for any and every eventuality so I usually just bring my small tool pouch up with me in case it is something I can fix real quick. I have had cockpit chats to fix everything from a missing cup holder in the flight deck to aircraft damage. I can understand being discreet in some cases but a few (a lot) of the crews take this a little too far. We mechanics only have about 20 minutes to trouble shoot and fix problems and playing the guessing game slows that down. I have had crews tell me that they do not like to transmit the problems they are having over the radio because "they" might be listening. Who "they" are is unclear to me. The FAA has a lot more to do than listen in on our OPS frequency to see if the pilots are using the correct radio protocol. Back in the day people used to use radio scanners to listen in on airport traffic but even that got boring real quick, so I think that it is safe Mr. or Ms. Pilot.

When I passed probation all those years ago and started to evaluate the newer guys on their performance while they were on probation I realized how important being a good planner is. My boss at the time was a guy I will call Tator. Tator would watch the new guys work. He often remarked how this was that guys third or forth trip back from the plane to get parts or something like that. His concern was simple: if you are spending all night running back and forth to stores you are taking longer than needed to finish your jet. Back then we had fewer people at night so every mechanic had to do more than one plane a night just so we could make launch in the morning.

When I terminate a plane I write everything down that I find wrong and I put the discrepancies on the big board where our planes are listed for the night. This used to be common practice but not too much anymore. I sometimes get flack from the mid night shift guys for writing all these things that I found wrong on their plans onto the board. This is confusing to me because I saved them a trip by telling them what they need before they get out to plane and have to turn around to get it.

It is simple we have to get our planes out on time. Unfortunately it is part of our job to ensure on time departures for our customers. I will be the first to say that if you as a mechanic have to take a delay in order to properly fix a jet than go right ahead, safety first. Planning and being a good planner will, however minimize those delays.

When a call comes in OR when you get your assignment for midnight shift think to yourself: what am I going to need to bring with me in order to fix this plane? When a call comes in about a coffee maker-bring a coffee maker. I know that 9 times out of 10 we can fix the original coffee maker but when that one time comes up it is a lot easier and quicker to change one out if it is with you or at least on your golf cart waiting for ya. We have a guy at work who never brings things with him to his gate calls and he annoys everyone by going out and ALWAYS calling for someone to bring him parts. Don't be that guy!!

The More Things Change........

The longer I am in this line of work it never ceases to amaze me how many things have come and gone that were supposed to make the life of an aircraft mechanic easier. It seems that every year a new computer based maintenance program comes out with the latest and greatest techno gizmos. There are safety harnesses to keep us from bashing our heads, safety vests to keep us from being run over, new tools to help us troubleshoot, on and on.

With all these new tools it seems that the guys who get stuff done. The guys you can count on to fix a plane all have the same traits that the guys who can't fix planes do not have (no matter what fancy new tools they show up with). I know at my job there are guys who I will go on a road trip with and guys I will not go on a road trip with. The ones who I go with have to know how to work. By work I mean not give up when the first thing that someone else (MX Control) tells them to try does not work.

I'm not sure if there is some God given traits or talents that make a good mechanic. I do know that some of the best mechanics that I know all have certain things in common. They all:

Have common sense.
Know how to use Maintenance manuals.
Know how to read a wiring diagram.
Carry a surprisingly small number of tools with them.
Take very good care of those tools.
Work very smart.
Can be trusted to work alone.
Do not get pushed around by MX Control.

There are those who get by. There are those who rely on others to get by. Some hide. Some simply do nothing.

To be a good Line Mechanic you can not be burdened by all the new techo gizmology that comes out on a yearly basis. Bleed air test boxes for example will give false readings if not hooked up correctly. The reason to know how a system works is to not be overly dependant on test boxes or others (MX Control) to do your troubleshooting for you.

I have always said that you can fix any thing with a srewdriver,visegrip, and a hammer. Everything except laziness.

My New Mag-Lite LED XL100 Dayshift and Swing Shift Friendly

A long time ago I did a post on my trusty 3D cell LED Mag-Lite. Anyone who remembers that post can recall how much I endorse the Mag-Lite line of tools. Tough as nails, reliable and of course able to be used as a whacker (hammer). I still use my 3D Mag-Lite almost every day I'm at work and certainly every time I work midnight shift. The light works great but recently I have been looking for something smaller to carry when I'm on day shift or swings and certainly when I'm on a road trip. Ideally something that I could place in my pocket but still throw out some good light.

I started looking at all those little LED lights that you can find at the gas station or Wal-mart etc. As a matter of fact my buddy, Maybe-Maybe< carries one of those little lights and it works fine for him. I could not bring myself to using one of those cheapies at work. I own one that I keep in my car and another as a back-up light, but as a primary light I just can't do it. Maybe-Maybe has told me that he is at a point in his career in that he does not wish to buy any new tools. He claims to be about five years from retirement (yeah right). I am no spring chicken but I also have about another twenty years before retirement so I still want to buy some quality tools.

I like most Aircraft Mechanics am broke!!! So when I got a Home Depot gift card a while back I knew I would waste it all on tools and such. Today while picking up a hose for my refrigerator (it was on MEL), I looked around and saw the Mag-Lite LED XL100. Small, compact, water and drop resistant (hey it is a Mag-Lite!) and its an LED.

The XL100 is 4 3/4" long with a diameter of a quarter. Once I got it unpacked and loaded with the batteries (they came with the thing) I tried it out. To say it is bright is an understatement. The XL100 puts out a nice focused beam which is fully adjustable like any larger Mag-Lite. The light is turned on by a thumb switch on the butt end, sealed of course.

One of the kind of gimmicky things that I don't really approve of is the way the light swithces between "modes". Yes Mag-Lite has jumped on the different modes band wagon, which is kind of sad but I know they have to appeal to more folks than just Old School Aircraft Mechanics. There are 5 modes: DIM (normal), STROBE, NITELIGHT, SIGNAL, and SOS. That would be ok but to switch between the modes you don't turn the little knob/button/switchy/red thing in the photo above like I thought. That thing may look like it is movable but it is not. I had to break open the included written directions to figure this thing out. Basically it is a motion sensitive switch, you hold the light so that the mode you want is at the twelve o'clock position, press the on/off switch and hold it down, in the DIM mode you can adjust the brightness by then twisting your wrist in a counter clock wise or clock wise direction. Ridiculous!!

I'm pretty sure I will never use any mode besides the normal one (DIM??).  Anyway the thing is pretty bright and for that it is doing it's job. I hope to never have to test it's drop test toughability but I'm sure it will happen sooner or later.

I will let you guys know how well it holds up. I hope to never have to read an instruction manual to figure out how to use what is supposed to be a simple tool but I fear the days of simple tools are over. Ahh another post subject....

Happy fixing!!

Veteran Tool Spotlight: Safety Wire Pliers

It's been a while since I did a tool spotlight so I think I am going to discuss safety wire pliers. Like most mechanics I have a couple of pairs of safety wire pliers and have "gone through" a couple more. When I first started out in the industry I had a large pair of Mac safety wire pliers that were "liberated" from me by someone who thought he could take better care of them. I pretty much used those pliers for the first three years that I worked on airplanes.

A good pair of safety wire pliers is pretty much an essential to a good mechanic. Like the Ford Wrench I wrote about in an earlier post the safety wire plier can be a multi-use tool. Of course there is the obvious use for twisting wire, but I have known guys who use their safety wire pliers for cutting wire, zip ties, etc. pretty much replacing their diagonal cutters (dykes) with their safety wire pliers. By the way before I get too far along there are two sizes of safety wire pliers typically found: a 6" and a 9-12". The larger version is what guys in the hangar use. If you are reading this blog and just getting into aircraft maintenance than I suggest buying both. I personally only used a large pair until I got laid off and then started working line maintenance. In the line maintenance world just about everybody uses the smaller 6" version. Working the line you are safetying items that use .032 or smaller wire and not much .040 wire so we can get away with the smaller plier.

The larger pair of safety wire pliers I own were given to me by and old guy at Hayward Airport. They are Milbar Wire Twisters and are all silver (kind of unique). They are also unique in that the bar that you pull out to create the twisting action ratchets back into the plier instead of wisting back in. The smaller pair that I used for years is a no-name plier I bought new off of a truck. They worked very good for a long time and I only retired them because I got a better replacement. The safety wire pliers I carry in my line bag now are Bluepoint reversable safety wire pliers. The Bluepoints are very good and I like the fact that they can be reversed although I have to admit I rarley use that feature. The other thing I like about the Bluepoints is that the head of the plier is very small compared to an el-cheapo brand.

There is a funny thing that happens to line mechanics when they get used to using their own safety wire pliers. It is very awkward to use someone elses. When a buddy hands you his pliers to safety something they just do not feel right. I have also noticed that guys will use those pliers long past their useful life. I've seem some pretty messed up safety wire pliers being used after the lock or return spring thing is busted up. That just goes to show you how attached mechanics become to their tools (or are we a cheap bunch?) and how important useing a tool that one is familar with is to mechanics.

As in most Tool Spotlight posts I have to admit that I have used my safety wire pliers as a hammer before, but is that really that unusual? For all you guys with busted up safety wire pliers I even included a link to Amazon.com so you can pick up a new set!

Veteran Tool Spot Light-Ford Wrench (by request)

The lowly Ford Wrench. What can I say? It's heavy, awkward, loud, and often rusty. It sits on the bottom of your Line Bag or Toolbox waiting for that one time that it is needed a year. It's not the sexiest looking tool around and won't win any beauty contests. But that one time, oh that one time, when nothing else will work that Ford Wrench will be your savior. Let's start with a little background.
The Ford Wrench as we know it was the original Monkey Wrench. Where the term Monkey Wrench came from I do not know but the wrench is a Ford Motor Company original. This wrench was supplied in the 1929(?) Ford Model A tool kit. Of course people soon figured out that it could be used for any number of jobs on the car or anywhere for that matter. Fast forward 80 years and the wrench we all know is still known as a Ford Wrench.
As far as Line Maintenance the Ford Wrench is a must have. I have seen them long, short, even tiny but they all had one thing in common: they are built to last. My Ford Wrench is a little shy of 10" long with a maximum jaw opening of 2 1/2". My wrench looks like its about 50 years old and I have no idea how old it is. I think I got it from a guy at Delta Airlines but I can't remember. My wrench has no company insignia on it, in fact it has no markings at all on it except a tiny M in a circle. I have no idea who makes it or where it came from. Here is what I do know:
My Ford Wrench has helped me out of quite a few tight spots. When you need a large wrench 1 plus inch, there are times when a typical open end wrench won't fit. The nut or more typically hydraulic, fuel, oil, pneumatic, fitting is in a spot that the open end or even angle wrench can not get a good bite on it. We out on the Line call this the "angle of the dangle". There are just some times when the angle of the dangle is such that the Ford Wrench seems to be the only tool that will work. The Ford Wrench has no fancy angles associated with it, 90 degrees and that's it.
When you first start out you may not have all the wrenches that you may need. Now a days who has the money to go out and buy every open end wrench and angle wrench and stubby wrench on the market. A Ford Wrench will work on everything from 0"-2 1/2" (in my case) and I have seen some that open way wider than that.
Remember the MagLite post? It seems that we all need to beat something at some time and no one carries a hammer. Line guys do not carry hammers in their bags. They may have one in their toolbox in the shop or carry one one their golf carts like I do but they do not carry hammers in their Line bags. As I mentioned earlier these Ford Wrenches are heavy metal and often stand in for that missing hammer. I would bet that guys use them more for hitting tools than as a wrench.
Working the Line is all about thinking on your feet. The truly good Line Mechanics do not run back and forth from the airplane to their toolbox in the shop. They use what they have and some common sense to fix the problem. The Ford Wrench is one of those tools that allow you to do just that. Sure it's not the first tool people think of as a must have and often times it won't cross our minds at all until that one moment when you look at a job and the thought goes through your mind, "I bet I can get my Ford Wrench on that".

Tool Suppliers

Other businesses give out free samples of their latest tools or developments, why doesn't the companies that make our tools do the same? A little free-be from Snap-On, Mac, or Craftsman would go a long way in developing customer loyalty.