AD 93-05-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schweizer Aircraft Corporation | 269A | Airworthiness Directives; Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B and 269C Helicopters |
| aircraft | Schweizer Aircraft Corporation | 269A-1 | Airworthiness Directives; Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B and 269C Helicopters |
| aircraft | Schweizer Aircraft Corporation | 269B | Airworthiness Directives; Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B and 269C Helicopters |
| aircraft | Schweizer Aircraft Corporation | 269C | Airworthiness Directives; Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B and 269C Helicopters |
Unsafe Condition
Restriction to the movement of the engine throttle control linkage that could result in loss of control of engine power due to tube assembly interference.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 5 hours time in service after the effective date, inspect the tube assembly length and check for security and clearance from the throttle linkage. If issues are found, install improved tube assembly P/N 269A8326-235 with clamp P/N MS21333-98 or secure the existing tube assembly and conduct repetitive checks. Replace the tube assembly within 6 months after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 5 hours time in service after the effective date of this AD, and thereafter at intervals not to exceed 25 hours time in service from the last check
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A helicopters with fuel injected engines; all Model 269A-1 and 269B helicopters; Model 269C helicopters, serial numbers 0004 through 1480 and 1482 through 1486, equipped with engine-driven fuel pump drain tube assembly P/N 269A8326-95.
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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