AD 2020-24-05 from Piper

Discussion in 'Maintenance Bay' started by brien23, Nov 23, 2020.

  1. brien23

    brien23 Cleared for Takeoff

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    Just in time for Christmas A/D 2020-24-05 wing spar inspection, get your kit for Christmas now avoid the rush.
     
  2. Domenick

    Domenick Line Up and Wait

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  3. Timbeck2

    Timbeck2 Final Approach

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    I got the kit about a year ago. Never installed it...yet.
     
  4. Hang 4

    Hang 4 Cleared for Takeoff

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    hindsight2020 likes this.
  5. JScarry

    JScarry Pre-takeoff checklist

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    Any A&Ps know if this is a viable method for most of us?

    (iv) Use a lighted borescope capable of 10X or higher power magnification display through existing access points (e.g., wing root fairing, landing gear panels, internal lightening holes, or other access points depending on model).
     
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  6. hindsight2020

    hindsight2020 Final Approach

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    That's not the "dreaded one". See post #4.
     
  7. k9medic

    k9medic Pre-takeoff checklist

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    I just had SB1006 done and fogged the wings with corrosion X at that time. Looks like at the next annual we will be using a borescope.
     
  8. Archer Jack

    Archer Jack Pre-takeoff checklist

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    I think I got an early Xmas present. After reading the AD my model number is not included (PA28-181) nor is my serial number. Yaaaay! (I think):dunno:
     
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  9. kgruber

    kgruber En-Route

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  10. WannFly

    WannFly Final Approach

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    That is correct(assuming I am reading the AD correctly). In any case, I already have that inspection plate
     
  11. WannFly

    WannFly Final Approach

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    181 is not included

    [​IMG]
     
  12. GRG55

    GRG55 Final Approach

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    Are any of the semi-taper wings included?
     
  13. mondtster

    mondtster En-Route

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    Doesn't look like it. I believe they all have the access panel factory installed that allows access for the inspection.
     
  14. Timbeck2

    Timbeck2 Final Approach

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    So I looked at my kit and decided to locate where it goes under the wing. The instructions are pretty much non-existent and ambiguous. 5.7 inches from the spar, 4.7 inches from the rib? First of all, its like an FAA test, one has to extrapolate where .7" would be (I guessed 11/16") and second, you would have to have x-ray vision in order to measure from the spar and the rib. Why couldn't they just tell the A&P to measure X inches from this row of rivets, and X inches from the other row of rivets? And how exactly to install it?

    I watched a YouTube video of a guy installing it one way and read another blog with pictures with another guy installing it another way. The video has the inspection cover over the under wing surface, the blog has it flush with the under wing surface. I would prefer the flush method but which one is supposed to be correct, or is either way fine?

    I'm all for complying with the AD but come on FAA, a little help would be nice instead of the bullchit "instructions." Its as if they are setting us up to fail.



    https://zookaviation.com/blog/2019/02/05/piper-pa-28-32-main-wing-spar-corrosion/

    [​IMG]
     
    Last edited: Nov 26, 2020
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  15. Omalley1537

    Omalley1537 Cleared for Takeoff

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    remember their slogan...”we’re not happy until you’re not happy.”
     
  16. mondtster

    mondtster En-Route

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    I have not had to install one so I can't speak from personal experience, but I suspect the exact location isn't critical enough to warrant the precision you're seeking. The taper wing airplanes have the access panel you're looking to install, perhaps locate one of those airplanes to take measurements and copy how Piper installed them on those wings?
     
  17. Bell206

    Bell206 En-Route

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    FYI: No test. Most technical drawing are in decimal dimensions and it's usually easier to use measuring scales in 10ths/100ths vs converting to fractional dimensions. You can pick up a 6" scale in 10ths/100ths for about $6 in most places.
    Because the data was designed and written by an engineer instead of a mechanic. :eek:
    Without seeing the instructions can't specifically comment. But in my experience, if the panel has a rolled edge it usually indicates it is externally mounted and if the panel has a straight edge it is flush mounted. Looking at the pics/vid above it appears the panel edges are rolled so I would go with the video install method. However, if the instructions don't specify which way and all the sheetmetal edge distances are maintained it doesn't mean the blog version is technically wrong either. If I went the flush route I would have fabricated a new panel with straight edges so that it would fit better.
    FWIW: From my experience those instructions are typical of OEM install data in general. At least you got some instructions instead of just a box of parts and a pick list. Those type kits are always a load of fun to figure out.;)
     
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  18. Timbeck2

    Timbeck2 Final Approach

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    Thanks Bell, I was hoping for one of you guys to chime in.
     
  19. unsafervguy

    unsafervguy Pattern Altitude

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    What? You don’t have a machinist scale marked in tenths? I thought everybody has at least one of those.
     
  20. Roland Donnell

    Roland Donnell Filing Flight Plan

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    Any link to in stock availability?
     
  21. Timbeck2

    Timbeck2 Final Approach

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    Well, probably the scariest thing for me to do was to drill into my wing and make a hole for the access panels but I did it. It looks like the bottom picture I posted above with the caveat that on advice of my A&P, I didn't dimple the holes for flush rivets and installed universal because dimpling stretches the aluminum and increases the risk of cracking. I mounted the access panels flush and they look awesome if I say so myself. My A&P mentor is happy with my work and so am I. My spar looks like it did when it left the factory in October 1969. But I'm lucky as my plane never left the SW so its been in a dry climate all it's life.
     
    Last edited: Mar 2, 2021
  22. Timbeck2

    Timbeck2 Final Approach

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    A quick look shows that its going to be hard to find for a while. Sky Geek is 100-110 days before availability and the price has increased about $100 since I bought mine almost two years ago. The good news is that you have 100 hours before you have to install the panel. The not so good news is it states, within 100 hours OR the next inspection. So if your annual is due soon...
     
    Last edited: Mar 4, 2021
  23. Magman

    Magman Pre-takeoff checklist

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    You may want to check out a post from Avid Flyer on Piper Forum .

    He made up kits as an Owner Produced Part and sells for about $60 .

    Thats for 2 sides.

    Someone I know has ordered and I hope to see it soon.
     
  24. Bell206

    Bell206 En-Route

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    FYI: you can not sell owner produced parts. There are routes to share or sell data but the owner has to be involved in 1 of 5 ways. And simply buying the produced parts from someone else is not one of them.
     
  25. NordicDave

    NordicDave Pattern Altitude PoA Supporter

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    Yes, a common method is seller sends the detailed specification to buyer for review and sign as the specification/directions for manufacture.
     
  26. Magman

    Magman Pre-takeoff checklist

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    I would say it’s not sold as an owner produced part but rather as the basis for one.

    The aluminum is part to shape but holes need to be debarred and nut plates must

    be riveted in place .

    The Owner would direct the Tech to assemble as an Owner Produced Part.
     
  27. Bell206

    Bell206 En-Route

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    Directing the mechanic to assemble still doesn't make it an owner produced part. The owner must be involved in the manufacture of the part.

    And given one will be signing off an AD via an SB what design data were these "owner" parts manufactured from?

    PS: you really need to find a neighborhood kid to come fix the formatting on your posts. Seriously.;)