Is AD 99-22077 a recurring Airworthiness Directive?

No — AD 99-22077 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 99-22077 apply to?

AD 99-22077 applies to Bell Helicopter Textron, Inc. — models 205A-1, 205. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 99-22077

one-time

AD 99-22077 · 1999-08-31 · airframe

Airworthiness Directives; Bell Helicopter Textron, Inc. Model 205A-1 and 205B Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to Bell Helicopter Textron, Inc. (BHTI) Model 205A-1 and 205B helicopters, that requires inspecting the vertical fin spar cap (spar cap) for cracking, corrosion, or disbonding; modifying the vertical fin; and replacing the left-hand spar cap. This amendment is prompted by five accidents involving helicopters of similar type design. The actions specified by this AD are intended to detect fatigue cracking or corrosion on the spar cap, which could lead to failure of the vertical fin spar, loss of the tail rotor, and subsequent loss of control of the helicopter.

Which aircraft AD 99-22077 applies to

MakesBell Helicopter Textron, Inc.

Models205A-1, 205

Part-conditional — 212-030-447-001, 212-030-099-091, 212-030-099-095, 212-030-121-037.

Captured text covers paragraph (a): for Model 205A-1 helicopters with fin spar cap P/N 212-030-447-001 installed, modify and repetitively inspect the vertical fin spar for cracks per Bell Helicopter Textron Alert Service Bulletin No. 205-98-70, Revision A, dated September 21, 1998; replace cracked fin spar assembly/cap before further flight. AD text is truncated in the source slice mid-procedure; additional models/paragraphs may exist beyond the captured text.

Whether AD 99-22077 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 99-22077 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 →Read the full directive (Federal Register)

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.