https://www.boeing.com/resources/boeingdotcom/company/about_bca/startup/pdf/freighters/747BCF.pdf Can someone explain why the bulk cargo capacity is larger on the -200 compared to the -400? Just a guess, does the -400 have vacuum lavatory waste tanks in the bulk cargo vs a -200 with no tanks? Yeah ...
Jump to postAnyone have any experience with British built jets? I've heard that Hawker biz jets and the BAC 1-11 were notoriously bad. The Hawker Siddely 748 was a nightmare as were the B747-200 Super B's with their terrible JT9's, FCU changes, teleflex cable on the engine, centre tank boost pumps or water inj...
Jump to postThe vbv’s and vsv’s move in response to changes in the engines operation, like acceleration or deceleration (among other things). So using the fuel control and fuel pressure to actuate them makes the most sense. Using airframe hydraulics, even from the engine driven pump, wouldn’t make sense. If the...
Jump to postIs the 2 or 3 year commitment to a station when you hire in a hard and fast rule? Or are there situations where they let people bid out prior to meeting the commitment?
Jump to postLightning diverter strips. They provide a path for electricity to travel across the composite radome.
Jump to postHow often do you see the tether actually stop the aircraft from tipping ? It’s hard to put a number to that since they don’t tip with a tether installed. But I’ve seen them get pretty tight and I think some of those would’ve tipped. Really only on MDs though. It’s probably overkill doing the whole ...
Jump to postIt's technical possible to design a replacement LCD, with all the complex switching and symbol generator(s) included (as installed in older Airbus aircraft). But then you have to re-certify also all these extra functions. If you only have to replace the CRT display by an LCD, certification is less ...
Jump to postNot sure about ups, but we install it when the plane blocks in and it stays there until you are actively setting up to push out. Even if the plane is loaded already, if there is an extended time until departure the tether stays on until you are setting up for pushback. We have a tether installed on ...
Jump to postJust a guess...but I would bet it because it’s harder to start an apu the higher you go. A battery is depleting it’s energy throughout the start so having a height ceiling makes sense to make sure the battery can last through the start. A tru is converting ac to dc so as long as everything is workin...
Jump to postThey are the bilge drains. The drain masts are for things like lav and galley sinks usually.
Jump to postWhere I work (US based) a known issue between block out and take off would have to be addressed before flying. I think that’s pretty common here but don’t really know. Opening a breaker to deactivate a circuit then flying would have to be backed up by some approved document, most likely the MEL but ...
Jump to postLike others have said it’s the door unsafe lights. They come on when the doors cycle. For wheel well illumination, there are separate lights with white light.
Jump to postAll planes in the FedEx trunk fleet have a hud/efvs except for the A300’s. Any not having it would be a rare exception and probably a new acquisition.
Jump to postI understand losing ADS-B, but the secondary radar interrogation will work I think mxaxai is right about it just being a lazy implementation as planes are modded. From what I’ve seen, when a gps system is not working the transponder that it feeds input to will have a fail light on the control panel...
Jump to postThe us registered company I work for seems to focus on keeping the three number digits unique to each plane and also fall into a certain block of numbers that specify fleet type (eg: 900-999 are used for just 757s) . There is some variation on the last two letters of the registration and that might ...
Jump to postOkay, so basically, just as high altitudes and low pressures are harmful for humans, the same can be said for pumps. At low pressures, cavitation will cause bubbles to form in the fluid at the pump inlet which can be harmful. So they put bleed air inside to pressurize so that cavitation won’t happe...
Jump to postAccording to aeroshell: “Of 359 grease application points on a Boeing 737 - AeroShell Grease 33 lubricates all but 9 of them”. BMS 3-33 meets MIL-PRF-23827C specification. On Boeing’s, it’s definitely the most common grease I’ve seen. Pretty much used all over except a few landing gear fittings.
Jump to posthttps://i.ibb.co/RphH0zm/E7-F921-BA-6-F7-B-4338-8-B6-D-76-D450-CE3684.jpg You need a binocular bolt shown on the left side of this pic! If you’re lucky you might oversize the hole and get away with a larger fastener, but with a snowmanned hole you could have edge distance issues. You need to find a...
Jump to postOnce the transfer to the onboard server is complete, the AMT can move to another aircraft and comlete the same task. He needs to return to each aircraft he does and verify that the load is complete and the data correct, but the upload device (not a PDL anymore), isn't tied to the aircraft during th...
Jump to postWe’re slowly moving to a wireless update on our A300. Bring the update device to the aircraft, wirelessly upload to the server, then the aircraft does the rest. All our other aircraft get the update device plugged into a connector on the flight deck, or directly into the FMC. What is the benefit of...
Jump to postThe mechanics had some jokes about it too...
Was there a listed max speed on the classic? I remember some talk about one but it was probably made up.
Not arguing for “aerotoxic syndrome” at all, but an example of how an apu can introduce smells/fumes into the cabin. Awhile back a md11 crew complained of fuel smell during preflight. The apu and packs were running. When I went back to the tail, fuel was leaking from the #2 drain mast and the wind w...
Jump to postI agree with the md11 location. Some people would need a ladder and it’s also has an access door with latches that never get used. And it’s definitely not as noticeable as other planes I’ve worked on.
Jump to postOn the cargo side of things , I’ve flown on 747s into sju. And Fedex flies md11s there regularly. Flight aware shows 767s have been going to bqn and it looks like Emirates sends a 777 there. So large jets can fly there. Whether there is a business case for a PR based airline with large jets, I would...
Jump to postThere is a ground call that’s used to get the attention of personnel on the ground. Usually if you want them to get on headset to talk. I don’t see it used often. The ground call is a momentary switch so it stops when the switch is released. When the alarm is continuous like in the video it usually ...
Jump to postI’m not a pilot, but I remember one trip in particular as a flight mechanic. We were taking off heavy out of Iquique, Chile in a 747-200. The FO was flying and he kept nodding approvingly at the yoke during the climb. I talked to him later over some coffee and he said he loved hand flying a loaded 7...
Jump to postLike others have said, without knowing where you it’s hard to say what jobs would be around you. But being an a&p without experience will limit your choices and your wage at first. But there are jobs around. There are those delta asm jobs, Fedex has been posting mtp jobs externally, both those g...
Jump to postYeah the loadmaster was on board with 4 crew and 2 mechanics. An NTSB press release says “The investigation found that National Airlines’ cargo operations manual not only omitted critical information from Boeing and from the cargo handling system manufacturer about properly securing cargo, but it al...
Jump to postLike fr8mech said, landing gear cycles are airframe cycles. The cycles tell you how many times the gear has taken the stress of landing. They don’t count extension/retraction cycles. The gear overhaul intervals are set by calendar time and cycle limits, whichever comes first.
Jump to postIt’s the vinyl flooring you see in some flight decks and in galleys. I don’t know where the name came from but it’s the only thing I’ve heard it called, it was probably a brand at some point. I googled “moon mat aircraft” and the name showed in the first site description, but I couldn’t get it to op...
Jump to postHow about cockpit seats? Do those get replaced after being sat on for thousands of hours? Seat cushions and covers get changed as they wear out. Either on the line or during checks. And the seats are repaired whenever components break. The two places I worked heavy check at both had seat shops. The...
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