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ACRO E-mail Archive Thread: [IAC-L:1835] Re: AD's om Exp A/C was MT3 Prop AD

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ACRO E-mail Archive Thread: [IAC-L:1835] Re: AD's om Exp A/C was MT3 Prop AD


Thread: [IAC-L:1835] Re: AD's om Exp A/C was MT3 Prop AD

Message: [IAC-L:1835] Re: AD's om Exp A/C was MT3 Prop AD

Follow-Up To: ACRO Email list (for List Members only)

From: Don Peterson <autotech at>

Date: Thu, 13 Nov 1997 02:54:54 UTC


 Ah, the good old "Experimental AD" thing again...

Nope.  AD's don't apply to any part of any aircraft which flies under an experimental 
certificate.  However, if your local A&P or local FAA inspector disagrees with this, 
then your life will be made miserable until you knuckle under.  I've had numerous 
conversations with several FAA folks on this, and they all agree on this point.  The 
Catch-22 is that if you admit to them that you don't really want to tend to everything 
that looks like ad AD, then they think you are crazy and probably shouldn't hold a 
pilots license and medical.  If you have ever gone eye ball to eye ball with a Fed (and 
I consider several to be pretty good guys), you learn that it is just best to go your 
own way and not press the point.

The only real rule is that an A&P (or the right repairman) has got to attest that the 
aircraft is in condition for safe operation.  If he thinks your bendix mag switch, or 
early PS5, or cut-down Hartzell is not in compliance, he can refuse to sign.  Get 
another A&P or fix the problem.  Some of the "problems" are not necessarily worth 

And a Pitts homebuilt is a Pitts design, not a Pitts aircraft.  Any AD's which apply to 
the Pitts Standard Type Certificate do not apply to a homebuilt flying under a special 
airworthiness certificate.

But who really cares?...

Don Peterson
Midlothian, Tx.

KJKimball at wrote:
> It is my understanding that ALL aircraft reguardless of certification
> catagory are required to comform to all the AD's issused to the airframe AND
> related appliances.  A homebuilt Pitts S-1 or S-2 is subject to the rear spar
> fitting AD.  Our Gee Bee Z replica is required to have all engine, prop, and
> accessories complied with.  Read the regs. again and you will see.
>  Experimental Exhibition catagory aircraft, such as, Yaks, Sukois, etc. are
> required to conform to ALL the AD issued on all items on the plane.
> Kevin Kimball


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