Annual Inspection AD Review

[Rob58]

When an IA performs the AD review as part of an annual, how does he determine if an AD still applies? I'm referring to one-time repairs, not so much recurring ADs. For example several ADs are very old that relate to engine and accessories components, in my case issued long before my engine was overhauled by a reputable shop. Does the fact that an engine was signed-off as overhauled provide evidence that an ancient AD must have been complied with? I'm trying to be pro-active and prepared for annual time. Thanks!

 

[Bell206]

how does he determine if an AD still applies?

There are applicability and compliance statements on the AD. Whether it "still applies" depends on what those statements say.

Does the fact that an engine was signed-off as overhauled provide evidence that an ancient AD must have been complied with?

No. ADs are a separate requirement with their own records requirements. For most OHs there is usually a step in the OH manual to check/perform any outstanding ADs but this does not replace or substitute the AD record requirement.

 

[Rob58]

ok, good info, thanks. So I have subscribed to the "Adlog" service which has provided me with what seems like a complete AD listing for my aircraft, engine and all of the accessories. I'm trying to understand the process that an IA would use to verify compliance. Some seems obvious like "verified cylinders are exempt by S/N" or "complied with service bulletin 123 by log book entry dated _____", what about a matter where an internal engine part was subject to an AD from 30 years ago, the engine was overhauled 10 years ago but no records exists specific to the AD issue, and the aircraft was signed off on annual inspection by other IAs for the past several years. What does this situation require?

 

[Timbeck2]

<•••another advocate for ADLog. It makes it easy and saves time. They send you an updated AD log every year before your annual

 

[Bell206]

What does this situation require?

ADlog is a great service. First use your new AD listing and research your aircraft records for existing AD sign offs. Each applicable AD is required to be signed off per 43.9 by a mechanic or in some instances by a pilot if permitted by the AD. A separate AD listing does not technically require a separate signature for the same AD and in some cases having dual sign offs for the same AD can create an issues. This is something to discuss with your APIA before you get too far involved. Once you initially get your ADlog set up it will be easy next annual to review. On the internal engine ADs would need to read the AD before I could answer.

 

[MauleSkinner]

what about a matter where an internal engine part was subject to an AD from 30 years ago, the engine was overhauled 10 years ago but no records exists specific to the AD issue, and the aircraft was signed off on annual inspection by other IAs for the past several years. What does this situation require?

I believe the overhaul paperwork should include AD compliance verbiage, so any additional records should reference that paperwork.

 

[bnt83]

Factory Reman log entry, its kinda lame if you ask me.

 

[Bell206]

Factory Reman log entry, its kinda lame if you ask me.

FYI: ADs performed under production certificates, type certificates, and in some cases CRSs, follow different rules. Maybe because its a reman, but this example at least lists the ADs. Quite a few OEMs will simply enter the following:
All applicable ADs and SBs have been complied as of this date, XX/XX/XXXX.

 

[NavAir]

My factory rebuild came with this list (my old factory new engine had a similar one):