AD 69-01-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Maryland Air Industries, Inc. | F-27 | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27A | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27B | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27F | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27G | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27J | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | F-27M | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | FH-227 | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | FH-227B | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
| aircraft | Maryland Air Industries, Inc. | FH-227C | Airworthiness Directives; Fairchild-Hiller Model F-27 and FH-227 Aircraft |
Unsafe Condition
Cracks in the lower wing outer panel skin, access door land, and stringers at wing stations 194, 197, and 204, particularly propagating from the access door-land attach screw holes.
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Required Actions
Install a placard restricting operation above 180 knots IAS before further flight. Inspect for cracks using X-ray procedures per Fairchild Service Bulletin 51-2 for six X-ray pictures per side at specified wing stations. Repair cracks or replace parts as approved.
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Compliance Time
Before further flight for placard installation; within next 25 hours time in service after effective date for inspections unless already done within last 25 hours.
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Affected Aircraft
Fairchild-Hiller Model F-27 (all variants) and FH-227 (all variants) aircraft with 5,000 or more hours time in service as of January 4, 1969.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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