Fr8Mech From United States of America, joined Sep 2005, 4344 posts, RR: 12 Reply 1, posted (7 years 2 weeks 1 day 15 hours ago) and read 4289 times:
Could be a leak, but I suspect electrical. I don't recall if any of the hydraulic lines are up that far forward. Most of them run aft to the trailing edge flap wells. I haven't been up there in a while.
The area just inboard of the pylon houses the 'vapor seal' disconnects for the engine/pylon. We've had plenty of problems at those connectors in the past.
By the way, anyone note the complete absence of fall protection?
Cubsrule From United States of America, joined May 2004, 21286 posts, RR: 19 Reply 2, posted (7 years 2 weeks 1 day 13 hours ago) and read 4265 times:
Come on, now. They're only ~12 feet up and they're a full foot (!!) from the leading edge. There's no way they need fall protection. Where's your sense of adventure?
I can't decide whether I miss the tulip or the bowling shoe more
Nonfirm From United States of America, joined Sep 2005, 434 posts, RR: 0 Reply 4, posted (7 years 2 weeks 1 day 10 hours ago) and read 4212 times:
Quoting HAWK21M (Reply 3): was thinking the same.
They probably used the Emergency/Overwing exit to reach there.Pity thats not possible on a Freighter.
regds
MEL
it looks like a platform truck off to the side with a ladder on it.
Fr8Mech From United States of America, joined Sep 2005, 4344 posts, RR: 12 Reply 6, posted (7 years 2 weeks 1 day 3 hours ago) and read 4148 times:
Quoting Cubsrule (Reply 2): Come on, now. They're only ~12 feet up and they're a full foot (!!) from the leading edge. There's no way they need fall protection. Where's your sense of adventure?
Aogdesk From United States of America, joined Jun 2004, 933 posts, RR: 4 Reply 8, posted (7 years 2 weeks 1 day 3 hours ago) and read 4118 times:
My guess is that it isn't a hyrdraulic snag at all, that its actually fuel. If memory serves me correctly, there's one beefy fuel line under that panel which has a nasty habit of springing a leak which shows up as a dry bay leak. Seen one and heard about many others.
Fr8mech From United States of America, joined Sep 2005, 4344 posts, RR: 12 Reply 9, posted (7 years 2 weeks 1 day 2 hours ago) and read 4112 times:
Quoting Aogdesk (Reply 8): If memory serves me correctly, there's one beefy fuel line under that panel which has a nasty habit of springing a leak which shows up as a dry bay leak
I thought it was the firewall coupling that leaked? I'm not sure if you can see the firewall side of the coupling from there, but like I said, haven't been in that area in a while.
FlyingColours From United Kingdom, joined Dec 2003, 2315 posts, RR: 11 Reply 11, posted (7 years 2 weeks 1 day 1 hour ago) and read 4070 times:
I thought the only way to deactivate the slide would be from the outside of the A/C, therefore negating the need to deactivate the slide since they are already on the wing
Also wouldn't that mean opening up the slide housing which if not shut & locked perfectly can allow the slide go deploy inflight (idea from another thread).
I'm not MX just curious
Phil
FlyingColours
Lifes a train racing towards you, now you can either run away or grab a chair & a beer and watch it come - Phil
A/c train From United Kingdom, joined Jun 2001, 501 posts, RR: 4 Reply 12, posted (7 years 2 weeks 22 hours ago) and read 4019 times:
May not be the situation in the picture, but theres 3 pipes, 2 hyd one fuel that run tight together through the front of the pylon hyd bay from the EDP modue and up along the top under the coffin lid panel, theres a u shaped pipe in the hyd bay that boeing changed the shape of through an S.B because the 2 hyd pipes were chafing through, they may have had one in this case. Ive changed one on the line from the chafing and its not much fun, get covered in skydrol and yes, it was raining all day. Its were the pipe cluster goes through the bulkhead and under the Y ducts, theres that rubber bung assy thats a PITA to put back together and you have to work by feel!!
regds a/c
HAWK21M From India, joined Jan 2001, 31228 posts, RR: 58 Reply 13, posted (7 years 2 weeks 9 hours ago) and read 3925 times:
Quoting A/c train (Reply 12): theres a u shaped pipe in the hyd bay that boeing changed the shape of through an S.B because the 2 hyd pipes were chafing through
Fr8Mech From United States of America, joined Sep 2005, 4344 posts, RR: 12 Reply 17, posted (7 years 5 days 18 hours ago) and read 3342 times:
Quoting AirframeAS (Reply 16): There is no way to wear a harness out on the wing like that because its at a gate, there are no harness attach points anywhere.
Sure there is. You use your lift equipment, which has rated attach points. You tether to it with a retractable, ratcheting lanyard.
HAWK21M From India, joined Jan 2001, 31228 posts, RR: 58 Reply 18, posted (7 years 5 days 15 hours ago) and read 3293 times:
Quoting AirframeAS (Reply 16): There is no way to wear a harness out on the wing like that because its at a gate, there are no harness attach points anywhere.
What about the Vaccum Type.Used in Mx.
Interesting Link
regds
MEL
But having it OVER the wing isnt a good idea..... the bucket of the lift could collapse (if not used properly or maintained properly) and hit the wing damaging it.
At AS, we were NOT allowed to have ANYTHING over the wing while working...company policy. (but there were exceptions (very rare to get!) that REQUIRED top upper management permission....IE: SI checks for inspectors.)
A Safe Flight Begins With Quality Maintenance On The Ground.
Well then, you have a problem. Part of the OSHA standard:
"Unprotected sides and edges." Each employee on a walking/working surface (horizontal and vertical surface) with an unprotected side or edge which is 6 feet (1.8 m) or more above a lower level shall be protected from falling by the use of guardrail systems, safety net systems, or personal fall arrest systems."
Some states have tighter regs: KY-4 feet.
We set up our snorkle lift as close to the work area as possible and tether to it. Sometime this means it is set up over the wing. Too bad. You're looking at the rare event of a cylinder failure vs. the more probable event of a person losing his footing on a wing.
Cubsrule From United States of America, joined May 2004, 21286 posts, RR: 19 Reply 24, posted (7 years 4 days 13 hours ago) and read 3103 times:
Quoting Fr8Mech (Reply 23):
"Unprotected sides and edges." Each employee on a walking/working surface (horizontal and vertical surface) with an unprotected side or edge which is 6 feet (1.8 m) or more above a lower level shall be protected from falling by the use of guardrail systems, safety net systems, or personal fall arrest systems."
If AS is only working on 737s and mad dogs, they might not be in violation of this standard. No overwing slides means that at least the trailing edge is less than six feet off the ground.
I can't decide whether I miss the tulip or the bowling shoe more
25 HAWK21M: How effective are the Vaccum type Safety Harnesses. regds MEL
26 Fr8mech: But the leading edge is probably over 6'. We're looking at them, but to the best of my knowledge, haven't bought any yet.
27 HAWK21M: Seen some Ads speaking very well about their efectiveness. regds MEL
28 AirframeAS: Thats correct but still....company policy still comes to mind....and it IS enforced strictly.
29 Fr8mech: That's fine, but should someone come off the front of that wing, OSHA will change the company policy. I'm suprised OSHA isn't already involved. Usual
30 HAWK21M: True.I guess its common Everywhere. regds MEL
32 AirframeAS: I worked there! C/D Checks in SEA before they shut down the base.
33 Nonfirm: have you ever read the policy for yourself.also in the sea hangar they have a magic carpet and the thing operates from the ceiling so you have to pas
34 AirframeAS: Yes, its in the AS maintenance manual. And they also explained it in Indoc training too. Thats called a teleplatform. Thats used for tail work and fu
35 N8076U: Although they "should" have fall protection up there, that would take too much time to set up, and it doesn't "look cool" either. I used to work for "
36 AirframeAS: I forgot to add to my last post (can't add now...) But another stupid rule was no toolboxes were allowed under the wing because if someone falls off t
37 HAWK21M: Toolboxes should be placed in Areas they are very Visable.Else you can trip over the Small ones. regds MEL
38 AirframeAS: While I agree, the A&P's I worked with complained about the lack of mobility (I think thats what they called it..) around the airplane while working.
39 HAWK21M: One Should never.Most Rules are Formed after carefull thought especially Safety related ones. Rules are for a purpose and they need to be followed. r
40 AirframeAS: Agreed! We had one inspector in SEA who fell off the teleplatform while working on a 727 at AS and plummeted to his death. I dont know specifics (aga
41 Fr8Mech: That argument works right up until your partner goes off the lift. Or until you're management and any knowledge of someone breaking safety related ru
42 DH106: Don't agree with 'one should never question' - but certainly one should never violate whilst perhaps questioning.
43 HAWK21M: Its common in Aviation that Some "Brave" collegues break rules & take shortcuts,while the Guy following the rules is considered "Not so brave" I rath
44 DH106: You seemed to miss my point. I was trying to distinguish between 'questioning' and 'violating' rules. I agree that rules are there for a reason and s
45 HAWK21M: True.Also Maybe a Suggestion can ammend a rule & make it more User friendly & yet Saf. regds MEL
46 AirframeAS: You might want to re-think that if you were on probation.............
47 HAWK21M: True..... Until confirmed don't Doubt rules unless its safety related. regds MEL
49 N8076U: You used my words out of context, so I'll clarify. What I said before had to do with fall protection not being used by the employees in the thread-sta
50 AirframeAS: Thanks for quoting me for some odd reason, but there were rules at AS I didnt agree with, but I never questioned them, that was my point.
51 HAWK21M: Whats that Pic about. Thats true.The Work was left Incomplete at a Wrong Stage. regds MEL
52 DH106: The photo shows the accident to DC-10 N110AA in May 1979 when an engine detached on takeoff from O'Hare causing loss of control & crash. I wasn't awa
53 Fr8Mech: As I recall, the forklift bled down a little while the crew went on break and caused undue stress on the pylon which led to eventual failure.
54 DH106: Ahh okay - so as N8076U says, they installed only the rear bolt first then went way.... forklift drops a little and stresses this only fitted bolt/mo
55 N8076U: Keep in mind I'm recalling this from memory, as I don't have any accident documents in front of me, but yes, apparently they started to hang the engi
56 HAWK21M: About the 1st pic Could they be doing hard landing checks. Since the pylon panel is also open, Isn't thats one area to do fuse pin checks and of cours
57 N8076U: Unfortunately, things like this do happen. I recall once getting stuck on a double windshield change on a 737. The old windshields were already out b
58 HAWK21M: The Tempplate of Cardboard Helps. regds MEL
59 N8076U: Only if the person who removed the windshields before I got there had used them! Chris
60 HAWK21M: You should have Shoved the AMM in his Face. regds MEL
61 A/c train: I know I have the benefit of hindsight, but I cant believe what im reading here!! Dont you guys have stage sign additional worksheets out there? I hav
62 Fr8Mech: Stage sign worksheet? Taskcards, maybe? Yes we do have them. That's because that procedure has been removed from the applicable manuals. As stated th
63 N8076U: On the line at UA, only certain jobs had signoffs after each step in the MM that would be printed out, like an engine change. Otherwise, you had to wr
64 HAWK21M: We use Task cards & Additional Worksheets [non routine] regds MEL
65 AirframeAS: At AS, we used task cards and worksheets as well. Some worksheets were already permenantly assigned to specific tail numbers regardless of check type,
66 L-188: He he. I thave been my personal experience that the strictness of rules enforcement both company and OSHA vary inversely with the distace one is from
68 AirframeAS: Sometimes companies and OSHA have different views on safety but I guess thats how it is...which sucks. Thats what OSHA is for. But in my experence, t
69 L-188: Where I was the only time you had people come down to monitor was timed coincidently with the August silver salmon run and the October goose hunting
70 HAWK21M: Arn't Spot checks carried out randomly. regds MEL
71 DH106: Come on MEL - there must be a question mark '?' key on your keyboard somewhere
72 HAWK21M: It'll appear only after 31st December 2006 2359:59 hrs regds MEL
73 AirframeAS: Honestly, I dont know. But I have never seen them. Normally when the AS hangar has visitors, the base announces it to the A&P's the day before to mak
74 HAWK21M: So the Regulatory Authorities announce their visits to the Airline in Advance.Then the purpose of Surprise Inspection is defeated.Why would they do t
75 N8076U: Although I agree from a safety standpoint that it does defeat the purpose, I will add that I myself have never seen a surprise inspection, and we alw
76 HAWK21M: Would that make things sloppy when there are no checks or Does the Airline have its own Internal Safety Audit team working Around the clock as out he
77 N8076U: Honestly, yes, things weren't as neat and tidy as they should be as during the inspections, but usually it occured gradually, so it wasn't like everyo
78 AirframeAS: My guess is to beat the fines if anybody was ever caught violating any safey rules. Same here on all accounts.
79 L-188: It's a bit hard to have a surprise random inspection when you have to buy a plane ticket on the same airline the day/week before. I Benifits of being
80 HAWK21M: Lucky Theres no Private Jets Available then regds MEL
82 Aaron747: Thanks for the positively fascinating reads guys - and many kudos to your years of effort and toil.
83 N8076U: They are very effective. The only thing is you need to have an air line wherever you are to use it. But if you "lost" the supply air or the vacuum su
84 HAWK21M: Thats a very well thought of Alarm.5 minutes is Adequate to come back to Normal zone & check the Problem. regds MEL
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