AD 80-11-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Nomad TC Pty Ltd | N22B | Airworthiness Directives; GOVERNMENT AIRCRAFT FACTORIES (GAF) Models N22B and N24A Airplanes |
| aircraft | Nomad TC Pty Ltd | N24A | Airworthiness Directives; GOVERNMENT AIRCRAFT FACTORIES (GAF) Models N22B and N24A Airplanes |
Unsafe Condition
Leakage of hot air check valve P/N I/N-74-334 could damage surrounding components; possible disconnection or jamming of control wheel assemblies, dislodging of wing center section spar support bracket bolts, interference/jamming of rudder pedals with guards, excessive wear in rudder tab system reducing flutter speed reserves, excessive vibration of horizontal stabilizer trim tab causing structural damage, and wind gust damage to horizontal stabilizer control rod could result in loss of control or structural integrity.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and repair hot air check valve per GAF Alert Service Bulletin AN 22-74-1; replace control wheel retaining pin with a new bolt per AN 22-27-8; inspect and replace loose nuts on wing center section spar support brackets per ANMD-53-2; remove and repair rudder pedal guards per ANMD-53-3; remove rudder assembly, install steel mass balance arm, and rework rudder/trim tab per NMD-27-3; inspect horizontal stabilizer trim tab and modify stub fin per ANMD-55-5; visually inspect horizontal stabilizer control system components and replace as needed per ANMD-27-12.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 25 hours time in service after the effective date of this AD
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Affected Aircraft
GAF Models N22B (S/N 5 and up) and N24A (S/N 42 and up), delivered or in operation prior to or on June 22, 1978, and other specific serial ranges as noted in individual paragraphs for certain modifications.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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