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Thread: Tail AD

  1. #41

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    Note: Installing a custom modified shoulder bushing doesn't help. This one was rotating and galling the bracket and hockey stick. The "highly experienced" A&P/IA who signed off on it might caught it if he had actually inspected it in accordance with the AD/SB. Now something to "fret" about... Click image for larger version. 

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    Last edited by bfd777; 03-31-2021 at 01:51 PM.
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  2. #42
    aktango58's Avatar
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    Good Pun!

    Great idea, but seems that a press fit would have been the answer- freeze it and pop it in, but not be so tight it splits the material it is going into.

    Love Bushwheel Bill's answer, seems well thought out and executed.
    I don't know where you've been me lad, but I see you won first Prize!

  3. #43

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    Might have seemed like a good idea but it turned out to be a band aid which exacerbated the problem.
    Quote Originally Posted by aktango58 View Post
    Good Pun!

    Great idea, but seems that a press fit would have been the answer- freeze it and pop it in, but not be so tight it splits the material it is going into.

    Love Bushwheel Bill's answer, seems well thought out and executed.
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  4. #44
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    I ordered the QMI kit as I’m about to do my tail inspection. Hopefully I don’t need it. I was going to return it if I don’t need it, but then I noticed in Bill’s video where he says that installing it takes the inspection from a 5 year requirement to 10 year requirement. Is that true? The stuff I read from the feds seems to contradict what he says in the video. Looking for clarification.
    Last edited by supilot; 04-05-2021 at 08:15 PM.

  5. #45

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    Did he obtain an AMOC to the AD? This was discussed on BCP or the club fb page and I thought the answer was no. So, AD trumps STC.
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  6. #46
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    Quote Originally Posted by 180_jeff View Post
    Did he obtain an AMOC to the AD? This was discussed on BCP or the club fb page and I thought the answer was no. So, AD trumps STC.
    As far as i've heard, this is the case.
    The 5 year / 500 hour inspections are still required.
    Plus, the ICA for the QMI kit only extends the interval for the first re-inspection.
    Cessna Skywagon-- accept no substitute!

  7. #47
    Steve's Aircraft (Brian)'s Avatar
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    Took the tail off a 185 today due to a bushing used in the co-pilot hockey stick... Big No-No to do because oversizing the attach hole makes for a too small edge distance for the attachment...



    Here is the offender...



    And here is the other side, which is actually fine...



    The too short bolt used with bushing that was on it... the threaded portion was riding on the inner bracket and wound up damaging that part also... Have a tail section off a 182 we did a tail wheel conversion on that I am able to rob a good inner bracket off of..

    I ordered a QMI kit and Bill sent it NDA for me..

    Brian


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  8. #48
    Steve's Aircraft (Brian)'s Avatar
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    QMI installed... Quick and easy relatively speaking... only complaint I have is the drill jig was a PITA to set up.. I wound up grinding a little material out of the inside section of it so it would slip in between the inner bracket and new QMI piece easier..



    QMI part in place for drilling...



    Part installed and drill jig in place...



    Finished this side...



    These are the two sides cut out of the hockey sticks...

    Took about 6 hours including complete tear down and reinstall of the tail surfaces to flight status... Next time the aircraft will need the AD inspection is 1500 hours or 10 years.. Then back to 500 hour 5 year inspections..

    Considering the owner of this airplane he will probably be due for AD in 4-5 years then about 2-3 years after that... This bird is a worker in a Alaska Lodge, will be on floats in a week or two..

    Brian...


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  9. #49

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    Quote Originally Posted by Steve's Aircraft (Brian) View Post
    .. Next time the aircraft will need the AD inspection is 1500 hours or 10 years.. Then back to 500 hour 5 year inspections.
    I hope I’m wrong, but my understanding is that the QMI kit doesn’t change the time interval on the AD because the STC’s ICA don’t constitute an AMOC.

    That is, the AD time is set by the AD and if you use the QMI kit to comply with the AD, it doesn’t change the time.
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  10. #50
    Steve Pierce's Avatar
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    To me as an IA the QMI time and AD time are irrelevant. With the QMI kit I am not gonna see a reason to remove the stab, most everything else can be seen with the tail on from what I have seen and the part that QMI fixes, I can still see with my borescope post QMI install.
    Steve Pierce

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  11. #51
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    So, the tail on our 180 is torn apart. There were no problems found pretaining to the AD or the SB (however, we will install the QMI kit while it is apart prophylactically), but there were a couple of bolts that were next to impossible to get out that required heat, drilling, and hammering - meaning a couple other pieces got messed up in the process (pictures below).

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    "Often Mistaken, but Never in Doubt"
    ------------------------------------------
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  12. #52
    Steve Pierce's Avatar
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    Ouch, that hurts.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers
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  13. #53
    Dave Calkins's Avatar
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    ....what Pierce said.
    Last edited by Dave Calkins; 04-17-2021 at 06:18 PM.
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  14. #54
    SJ's Avatar
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    Quote Originally Posted by Dave Calkins View Post
    wtfisworkingonyerplane?

    w stands for “who”
    Very reputable folks I have used a lot. It was a real bear apparently.

    sj
    "Often Mistaken, but Never in Doubt"
    ------------------------------------------

  15. #55
    Dave Calkins's Avatar
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    sorry. that could have gone alot differently. I spoke what I was thinking.

  16. #56
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    Quote Originally Posted by Dave Calkins View Post
    sorry. that could have gone alot differently. I spoke what I was thinking.
    no problem! I was not there for the process, so can’t say 100% what transpired.

    sj
    "Often Mistaken, but Never in Doubt"
    ------------------------------------------

  17. #57

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    Fresh inner hinge brackets, new Jack screw kit from McFarlane and the qmi kit... gettin closer Click image for larger version. 

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  18. #58
    180Marty's Avatar
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    but there were a couple of bolts that were next to impossible to get out that required heat, drilling, and hammering - meaning a couple other pieces got messed up in the process (pictures below).
    Sure glad I used ACF-50 on mine in 1989. Little messy but no stuck hardware.

  19. #59
    Dave Calkins's Avatar
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    Atxcruiser, do a new nutplate on the right side of the aft bulkhead now too

  20. #60

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    Quote Originally Posted by Dave Calkins View Post
    Atxcruiser, do a new nutplate on the right side of the aft bulkhead now too
    For sure, prior to finishing this up... getting close... just need tail feathers from paint and can finally move along. Taking them longer than I expected but it is going to be worth it in the end.

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