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JAGflyer
Topic Author
Posts: 3572
Joined: Tue Aug 10, 2004 5:31 am

Your Least Favorite Aircraft Part

Sat Feb 12, 2011 4:40 am

Being that I work in airline stores, I get to touch all the different parts used for aircraft mx. The job is extremely interesting but there are parts of it I hate. I'd say my least favorite part of the job is moving main-wheels (737) from the stores warehouse to the airport/gates/hangar that's about 5 minutes drive away. The hardest part I find is getting the wheel in/out of the truck (which has a lift gate) and then making sure it doesn't fall over onto it's side. Whether they're new or used, they are filthy and extremely hard to manage (being that they are very heavy and tend to want to fall over like a rolling coin). The brakes for the plane which weigh 420lbs are heavier but are easy to move as they are smaller and in cases that are easy to roll around when tipped over on their side.

So, what's your least favorite airplane part? (Skydrol seems pretty bad, but I never get to touch it unless it's in a can).

[Edited 2011-02-11 21:31:39]
If you flew today, thank a Flight Dispatcher!
 
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HAWK21M
Posts: 30067
Joined: Fri Jan 05, 2001 10:05 pm

RE: Your Least Favorite Aircraft Part

Sat Feb 12, 2011 10:50 am

Why don't you use a portable manually operated Hydraulic Lift for the Wheels/Brakes.

Toughest job to access would be the PRSOV on the RB211-535E4.
But lets call it Challenging.

regds
MEL.
I may not win often, but I damn well never lose!!! ;)
 
GST
Posts: 831
Joined: Wed Jun 11, 2008 10:27 am

RE: Your Least Favorite Aircraft Part

Sat Feb 12, 2011 11:27 am

The airbrake lever locking nuts on a single very specific ASK13 glider, a real pain in the neck to secure, and requiring some imaginative home made tools.
 
b78710
Posts: 311
Joined: Fri Mar 24, 2006 4:21 am

RE: Your Least Favorite Aircraft Part

Sat Feb 12, 2011 12:31 pm

A340-600 ACM. Always tough getting all the ducting back together. Same goes for the bleed ducting in the leading edge of the jumbo.

CLCP on the jumbo. Big lump. always a pain to get in and hooked up.

Most jobs that are tough are only tough because of tight access.
 
lipzoan
Posts: 16
Joined: Sat Jan 15, 2011 4:18 pm

RE: Your Least Favorite Aircraft Part

Sat Feb 12, 2011 5:56 pm

..fuel compensators..there's no way to avoid them to be wet..and to badly smell so long,after you finish your job
 
JAGflyer
Topic Author
Posts: 3572
Joined: Tue Aug 10, 2004 5:31 am

RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 12:03 am

Quoting HAWK21M (Reply 1):

The mx guys use manual cradle to move the brakes/wheels up towards the shank they mount on at the MLG but we in the stores dept do not have this device. It wouldn't really help us much. The only real movement I have to do with the wheels/brakes is to roll them to/from the truck (a few meters), get them on the lift gate, lower it so its level with the bed of the truck and then roll the brake or wheel into the truck-bed where I secure them with cables/rope (more so the wheels). To unload the brake/wheel I untie it, open the tailgate, roll the wheel/brake onto it and then lower it to the ground. Then the wheel/brake can be rolled to the aircraft to back into the warehouse. The hard part is keeping the wheel from toppling over onto it's side and moving it around as it is very dirty/dusty. Keep in mind the 737 MW weighs 300lb+ and the wheel won't stand upright on its own unless it is leaned against something. The brakes are easier to move since the cases they are stored in allow them to stand on their own freely without needing to be supported/leaned against something like the wheels do.

http://www.youtube.com/watch?v=rhfbQmRHzEE&feature=related

We have something similar to this on our pick-up trucks which we use to load/unload heavy parts with the truck. The only thing is ours does not lift high enough to go flush with the dock at the warehouse (there is about a 1-2 inch gap). For this reason, we cannot use a pump truck to load/unload the wheels at this time.

Brake case (opened with brake inside) -- > http://www.billthomasassociates.com/img/ph_clamshell.gif

[Edited 2011-02-12 16:04:37]
If you flew today, thank a Flight Dispatcher!
 
bluejuice
Posts: 384
Joined: Sun Jun 20, 2010 5:55 am

RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 12:25 am

Coach seat. Sitting in one.  
Not biased against vacuum flush.
 
roseflyer
Posts: 9602
Joined: Fri Feb 13, 2004 9:34 am

RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 5:28 am

As an design engineer I don't physically handle parts, but have been blasted by skydrol before and that was a horrible exprience. We had a reservoir problem and skydrol blasted out the drain mast on the ground about 50 ft. That was a horrible mess and was extremely bad.

As far as a technical side and troubleshooting an airplane, I have had the most problems with the pneumatics/pressurization systems. There are so many flow control valves in a 747 that it can be impossible to figure out what valve is actually broken. I worked on a plane trying to figure out why the upper deck of a 747 would not cool below 80 degrees F. It took mechanics 3 weeks of cooking the upper deck passengers before the problem was finally fixed.

Some electronic sensors can also cause problems like pressure switches and such. They can be a pain to figure out what the problem is since the symptoms might be completely unrelated to the actual problem.
If you have never designed an airplane part before, let the real designers do the work!
 
T prop
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Joined: Tue Apr 03, 2001 4:33 pm

RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 5:30 am

The meat actuator.   ....
 
AmericanAirFan
Posts: 387
Joined: Mon Jun 28, 2004 10:22 am

RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 7:42 am

Cotter pins, they can cut your hands up if you're not careful... Safety wire, I gotta buy myself a pair of safety wire pliers that will make things so much easier!

[Edited 2011-02-12 23:44:29]
"American 1881 Cleared For Takeoff One Seven Left"
 
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n901wa
Posts: 458
Joined: Thu Oct 15, 2009 5:38 pm

RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 8:08 am

Wow let see. Changing a L-1011 spoiler Hyd switch can ( other Wise I Love that Bird ). Changing the 767 Elevator Feel Comp ( It not a Black Box ) Replacing a 737 Rudder pedal adjustment cables. Replacing a Pratt MD-11 Engine ( I wanna meet the guy that made the Harnesses 5 inches too short so it would not reach the pylon ) on a Pratt 4000 changing the 2.5 bleed valve or the Air/Oil cooler. Changing a MD-90 engine. Those are the ones that stick to me. Some were no fun, but overall Its been a Great Ride  
 
474218
Posts: 4510
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RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 4:05 pm

I was never happy working around these:

 
JAGflyer
Topic Author
Posts: 3572
Joined: Tue Aug 10, 2004 5:31 am

RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 5:31 pm

Quoting 474218 (Reply 11):

Does that thing have something to do with the lavatory?
If you flew today, thank a Flight Dispatcher!
 
474218
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Joined: Mon Oct 10, 2005 12:27 pm

RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 6:11 pm

Quoting JAGflyer (Reply 12):
Does that thing have something to do with the lavatory?


L-1011 "aft waste tank". Note the "blue stain" on the aft pressure bulkhead fro an earlier spill/leak.
 
charlienorth
Posts: 1069
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RE: Your Least Favorite Aircraft Part

Sun Feb 13, 2011 9:13 pm

The load control valve on a B727 APU...could make you cry 
Work hard fly right..don't understand it
 
hercppmx
Posts: 159
Joined: Mon May 26, 2008 8:25 am

RE: Your Least Favorite Aircraft Part

Mon Feb 14, 2011 3:04 pm

Any Sort of bleed air ducting. There is one in specific in the C-130 engine, known as the "F" stack that is a major pain in the butt due to access issues. I've often wondered if the people who designed it have ever tired to install one on the wing, or any part for that matter.
C-130; it's a love-hate relationship
 
737tdi
Posts: 1116
Joined: Sun Sep 02, 2007 10:05 am

RE: Your Least Favorite Aircraft Part

Mon Feb 14, 2011 4:56 pm

737 horizontal stab. jackscrew. Not that hard to remove and install but very heavy to lift up through the "hell hole". Also the unwinding and rewinding of the control cable. Alot of times while doing this you will find a strand frayed and have to fab. and install a new cable. Big pain in the rump.

737tdi
 
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airportugal310
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Joined: Sun Apr 11, 2004 12:49 pm

RE: Your Least Favorite Aircraft Part

Mon Feb 14, 2011 5:36 pm

Quoting 474218 (Reply 13):
L-1011 "aft waste tank". Note the "blue stain" on the aft pressure bulkhead fro an earlier spill/leak.

looks small from the picture...was there a secondary tank or anything?
“They bought their tickets, they knew what they were getting into. I say, let 'em crash.”
 
Mender
Posts: 249
Joined: Wed Feb 04, 2004 9:36 am

RE: Your Least Favorite Aircraft Part

Mon Feb 14, 2011 10:13 pm

Quoting HAWK21M (Reply 1):
Toughest job to access would be the PRSOV on the RB211-535E4.

Clearly you have yet to enjoy changing the 450 degree sensor which is situated in the J duct behind the PRSOV

;0)
 
474218
Posts: 4510
Joined: Mon Oct 10, 2005 12:27 pm

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 12:38 am

Quoting airportugal310 (Reply 17):
looks small from the picture...was there a secondary tank or anything?


5 1/2 feet long 2 1/2 feet in diameter holds up to 125 gallons of ....! There is a slightly smaller in the forward avionics bay.
 
Okie
Posts: 4133
Joined: Wed Jul 16, 2003 11:30 am

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 1:58 am

Quoting JAGflyer (Reply 5):
We have something similar to this on our pick-up trucks which we use to load/unload heavy parts with the truck. The only thing is ours does not lift high enough to go flush with the dock at the warehouse (there is about a 1-2 inch gap). For this reason, we cannot use a pump truck to load/unload the wheels at this time

Ever hear of a couple of 2 x 6 to back the rear wheels of the truck upon.

Okie
 
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airportugal310
Posts: 3628
Joined: Sun Apr 11, 2004 12:49 pm

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 3:42 am

Quoting 474218 (Reply 19):
5 1/2 feet long 2 1/2 feet in diameter holds up to 125 gallons of ....! There is a slightly smaller in the forward avionics bay.

I guess its not so small after all! Thanks  
“They bought their tickets, they knew what they were getting into. I say, let 'em crash.”
 
sccutler
Posts: 5840
Joined: Thu Jan 27, 2000 12:16 pm

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 5:03 am

Got to change out one of the Master Cylinders on brakes on BE35 (Bonanza). Have no idea what kind of sadist thought someone would be able to get at those. Good thing they last a long time.
...three miles from BRONS, clear for the ILS one five approach...
 
wingscrubber
Posts: 823
Joined: Fri Sep 07, 2001 1:38 am

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 5:51 am

I can remember having a spot of trouble wire locking 747 fuel booster pumps. Also, bleeding C152 brake reservoirs (no room behind rudder pedals!), changing oil filter on the 6-cyl Piper Saratogas (no room between engine and firewall!)
The rear plastic cabin bulkhead in the Pipers as well, so flimsy! Impossible not to crack it if you're trying to crawl into the tail to lube pulleys back there.
Resident TechOps Troll
 
737tdi
Posts: 1116
Joined: Sun Sep 02, 2007 10:05 am

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 7:07 am

I have rubber bones!!! I crawled through the aft access panel of a 737-700 nose wheel well access panel into the E&E compartment when we were tracing wires for the new WiFi setup. I'm not kidding here. I'm 5'7" and was able to crawl through, just kept my weight off of the air ducts. Try that buddies. I came out the E&E door. Ha Ha . There were some very amazed faces. I was marking wires for the routing.
 
regliner
Posts: 12
Joined: Thu Feb 03, 2011 12:16 pm

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 8:14 am

My least favorite part is the parking brake cable on the CRJ200. Goes from center pedastal to the nose. Starts in a pressurized area and goes into a non-pressurized area. Only way to get to the stupid thing was thru a panel we called the football panel. I have wide shoulders and if I needed 2 hands I couldn't see what I was doing because I can't get both arms and my head in. Plus it was a pain to rig. Hated that thing
"Plane's don't fly in the air. They fly on paper!"
 
b78710
Posts: 311
Joined: Fri Mar 24, 2006 4:21 am

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 8:47 am

747-400 GE CF6 Fan air temp sensor
 
737tdi
Posts: 1116
Joined: Sun Sep 02, 2007 10:05 am

RE: Your Least Favorite Aircraft Part

Tue Feb 15, 2011 8:48 am

regliner: They all suck. Get in front of the peddles you are in a world of hurt.
 
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HAWK21M
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Joined: Fri Jan 05, 2001 10:05 pm

RE: Your Least Favorite Aircraft Part

Fri Feb 25, 2011 10:05 am

Quoting 737tdi (Reply 24):
I crawled through the aft access panel of a 737-700 nose wheel well access panel into the E&E compartment

Which way from the Left or Right Aft access panel....Amazing.....Important to watch where you keep the load while moving around.
regds
MEL.
I may not win often, but I damn well never lose!!! ;)
 
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sunking737
Posts: 1601
Joined: Tue Feb 22, 2005 10:33 pm

RE: Your Least Favorite Aircraft Part

Fri Feb 25, 2011 12:44 pm

Anything that I can hit my head on. DC 10 nose gear door, cones to mind after plugging ground power bending over to pull more slack. Little did I know I had moved right under the gear door, until I stood up. WACK, dropped to my knees. Had a head ache, but I always wear a hat to minimize head wounds.

Another A/C part I dislike is door frame when catering a few times my ramp was too high, got busy. forgot to duck coming out to truck. Always wear a ball cap. Less trips to ER. We had a guy hit his head corner of shelve in catering truck. Yes he needed stitches. I told him to wear a hat but he did not like them.
"Don't believe it unless its parked on the ramp, or printed in the schedule...SUBJECT TO CHANGE"

I'm a SUNDUCK......Worked for RC & SY @ MSP

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