AD 68-01-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Maryland Air Industries, Inc. | F-27 | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27A | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27B | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27F | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27G | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27J | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | F-27M | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | FH-227 | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | FH-227B | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
| aircraft | Maryland Air Industries, Inc. | FH-227C | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Airplanes |
Unsafe Condition
Flap drive system failure whereby the flaps are driven off the drive screwjacks due to hazards associated with the Hartman MC815 series motor controller.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect flap system motor controller within 200 hours' time in service after the AD's effective date and at 200-hour intervals. Rewire the flap drive circuit within 500 hours' time in service after the AD's effective date using specified service bulletins or equivalent approved modifications.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 200 hours' time in service after the effective date of this AD, and thereafter at 200-hour intervals from the date of the last inspection for inspections; within the next 500 hours' time in service after the effective date of this AD for rewiring.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fairchild-Hiller Model F-27 (Serial Numbers 1 through 124) and FH-227 (Serial Numbers 501 to 555, 557 to 561, 564 to 566) with Hartman MC815 series motor controller.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.