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Boeing 777 The heavy check

Discussion in 'AviatorChat.com' started by 11506apollo, May 23, 2020 at 5:56 PM.

  1. 11506apollo

    11506apollo Formula 3
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    Claudio
    This is an hour long special on PrimeVideo showing the dismantling on an Air France 777 for the (once every 16 years) deep inspection and refurbishment of the aircraft It give us a good view and understanding of how complex this machine is.
     
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  2. Gatorrari

    Gatorrari F1 World Champ
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    Jim Pernikoff
    Years ago, I toured the Delta maintenance base at ATL and saw, if I recall correctly, an MD-80 going thru the "heavy check". I was amazed at how far they had disassembled the aircraft! Pretty much right down to the bare structure.
     
  3. Tcar

    Tcar F1 Rookie

    Link????
     
  4. 11506apollo

    11506apollo Formula 3
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  5. Bob Parks

    Bob Parks F1 Veteran
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    In 1993 our group assembled the entire 777 on the CATIA and produced a beautiful plot of the structure and systems that I wish that I had now. There wasn't an office anywhere that didn't have a print of it up on the wall. I worked on several parts of it then but I certainly couldn't do it now. Yes, it is a beautiful and complex piece of machinery that works pretty close to perfect.
     
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  6. jcurry

    jcurry F1 World Champ
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    The Maintenance Planning Document (MPD) defines all the structure and system inspection requirements for the airplane, and the intervals that each inspection must occur. During A and C checks, which occur multiple times between D checks, a lot of these inspections take place. Generally they are only visual in nature. The OEM tries to design the structure such that the more intrusive inspections requiring NDT methods are only required at D check. But since a C check is a multiple of an A check, and a D check is a multiple of A and C checks, all these visual and NDT inspections happen at same time and essentially require ALL of the structure on the aircraft to be inspected. Hence everything that can hide structure comes out.
     
  7. 11506apollo

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    I saw very little of NDT being done on the documentary, other than basic visual and some surface corrosion tests.
    I didnt see Ultrasonic or Eddy Current or Radiography, which I consider the main NDT methods.
     

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