AD 65-10-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Maryland Air Industries, Inc. | F-27 | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27A | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27B | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27F | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27G | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27J | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27M | Airworthiness Directives; FAIRCHILD Model F-27 Aircraft |
Unsafe Condition
Failure of the flap asymmetry warning system due to inadequate design of the center hinge wing flap asymmetry switches, part number 658-001, which may not provide proper warning of flap asymmetry.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the aircraft in accordance with Fairchild Service Bulletin No. 27-19, or Service Bulletin No. 27-26 (Revision 1 dated March 1, 1965), or an equivalent approved by the FAA. Compliance must be completed within 25 hours' time in service after the AD's effective date, with possible adjustments upon FAA approval.
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
Maryland Air Industries, Inc. Model F-27, F-27A, F-27B, F-27F, F-27G, F-27J, F-27M aircraft with Center Hinge Wing Flap Asymmetry Switches, part number 658-001.
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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