AD 69-16-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Maryland Air Industries, Inc. | F-27 | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27A | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27B | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27F | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27G | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27J | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27M | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | FH-227 | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | FH-227B | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | FH-227C | Airworthiness Directives; Fairchild Model F-27 and FH-227 Airplanes |
Unsafe Condition
Failure of the spring loading of the main landing gear door trolley mechanism and overtravel of the main landing gear doors during retraction.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the door trolley locking lever and main landing gear doors as per specified service bulletins or equivalent approved modifications within 100 hours' time in service after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fairchild Model F-27 (Serial Nos. 1 through 128) and FH-227 (Serial Nos. 501 through 518 and 520 through 578) airplanes.
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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