Is AD 67-11-01 a recurring Airworthiness Directive?

No — AD 67-11-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 67-11-01

Q: Which aircraft does AD 67-11-01 apply to?

AD 67-11-01 applies to Colonial Aeronautics (Lake) — models Colonial C-1, Colonial C-2, Lake LA-4P, Lake LA-4A, Lake LA-4. Serial/part conditions may narrow it to specific aircraft.

one-time

AD 67-11-01 · 1967-01-01 · airframe

Airworthiness Directives; Colonial Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4P, Lake LA-4A, Lake LA-4

Which aircraft AD 67-11-01 applies to

MakesColonial Aeronautics (Lake)

ModelsColonial C-1, Colonial C-2, Lake LA-4P, Lake LA-4A, Lake LA-4

Serial-conditional — narrows to serials 1–14, 16–20, 22–25, 115–115, 126–143, 121–121, 244–245, 246–356.

Amdt. 39-381 as revised by Amdt. 39-459; effective August 5, 1967. Serial ranges by model: Colonial C-1 S/N 1-14, 16-20, 22-25; Colonial C-2 S/N 115, 126-143; Lake LA-4P S/N 121; Lake LA-4A S/N 244-245; Lake LA-4 S/N 246-356.

Whether AD 67-11-01 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 67-11-01 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.