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Thread: AD 57-22-01 for fire hazard periodic inspection

  1. #41
    Administrator Steve Pierce's Avatar
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    Default Re: Firewall seal - moulding P/N 14972-00, 01, 14973-00


  2. #42
    forkzilla's Avatar
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    Default Re: Firewall seal - moulding P/N 14972-00, 01, 14973-00

    I replaced my firewall with a stainless Clyde Smith fire wall, and it came complete with the angles attached, for $400. That's less than just the angles from Univair.

  3. #43
    Wag-builder's Avatar
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    Default Re: Firewall seal - moulding P/N 14972-00, 01, 14973-00

    I think you are misunderstanding what this part is. I too have a Clyde Smith firewall and it does have the angle to attach the boot cowl, but it does not seal the firewall.

    Steve
    Last edited by Wag-builder; 01-10-2019 at 12:05 PM.

  4. #44
    Administrator Steve Pierce's Avatar
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    Default Re: Firewall seal - moulding P/N 14972-00, 01, 14973-00

    Quote Originally Posted by forkzilla View Post
    I replaced my firewall with a stainless Clyde Smith fire wall, and it came complete with the angles attached, for $400. That's less than just the angles from Univair.
    This kit to do away with the AD are in addition to the flange that is riveted to the firewall. Pictures posted here. http://www.shortwingpipers.org/forum...spection/page2
    Last edited by Steve Pierce; 01-11-2019 at 07:22 AM.

  5. #45
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    Default Re: Firewall seal - moulding P/N 14972-00, 01, 14973-00

    Subsonic, sent you an PM, but you should see it on Tuesday

  6. #46

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    Default Re: Firewall seal - moulding P/N 14972-00, 01, 14973-00

    Quote Originally Posted by Steve Pierce View Post
    This kit to do away with the AD are in addition to the flange that is riveted to the firewall. Pictures posted here. http://www.shortwingpipers.org/forum...spection/page2
    A trial fit of a used 14973-00 top piece in the 3-piece moulding kit shows some mismatched screw mounting holes along the sides. Were there two or more different hole patterns? I have a '56 PA-22 150. The holes in my boot cowling are evenly spaced from the centerline split along the top and around the radius to the sides. The piece I got used has a change in the screw hole locations - with an increased space at the top radius, and then returning to the original spacing so that all the holes along the side are about 3/8" or 1/2" off - rough eyeball measurement here. The hole pattern matches the top of the boot cowling. Does anyone know about this? If I order the new kit from Spruce or Univair, is the kit predrilled? If so, what is the hole spacing?
    Thanks, Subsonic

  7. #47
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    Default Ad 57-22-01

    My log books only go back to 1972 . Aircraft is a 1956 . Im looking through the logs to see if part number 754237 has been installed .
    I did find the insulation cut back and removed and my firewall is riveted to the cabin cowling . If the part was installed before 1972 I wont find it in my books but we are trying to get this AD removed frommtge list of re-occurring inspections
    CE2180D3-873D-43A0-A1BC-BEA3F4EBFAAE.jpeg

    7BC73797-6B1A-4C96-9031-3BC8D615D037.jpeg

  8. #48
    Administrator Steve Pierce's Avatar
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    Default Re: Ad 57-22-01

    You have the channels that eliminate the AD.

  9. #49
    Administrator Steve Pierce's Avatar
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    Default Re: AD 57-22-01 for fire hazard periodic inspection

    I merged some threads with good info, drawings and pictures.

  10. #50
    sierrasplitter's Avatar
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    Default Re: AD 57-22-01 for fire hazard periodic inspection

    Thanks Steve Glad to be rid of that inspection

    I did find some old oily insulation left but not much B0117D7A-AC3F-4486-8FA9-6ECD83C2A6AD.jpeg

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