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NPRM - Stabilator Horn AD

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Tom Veatch

Well-Known Member
Jun 8, 2010
Reaction score
Fairly active discussion going on at:
http://forums.delphiforums.com/comanche ... sg=11204.1

Comments due by Aug 8:

http://www.federalregister.gov/articles ... lanes#p-24

This proposed AD requires:
Inspect stabilator horn at 1000 hrs time in service or 100 hrs after effective date of AD and every 500 hrs/3 yrs thereafter or:
Replace stabilator horn every 1000 hrs/10 yrs.

Actually the recurrent inspection requirement of 500 hrs/3yrs is less restrictive than the Piper Service Bulletin 1189 which requires 100 hr recurrent inspection.

Estimated cost for inspection is 12 hrs labor for inspection and about $600 for replacement part.

Some folks think replacing the stock horn with the "Aussie" horn or with the PA-24-400 configuration should/might make the grade as an terminating action although AFAIK the FAA hasn't bought into that opinion and the NPRM doesn't state any terminating action or AMOC.

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