AD 82-25-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mitsubishi Heavy Industries, Ltd. | YS-11 | Airworthiness Directives; NIHON AEROPLANE MANUFACTURING COMPANY: Model YS-11/11A Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | YS-11A-200 | Airworthiness Directives; NIHON AEROPLANE MANUFACTURING COMPANY: Model YS-11/11A Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | YS-11A-300 | Airworthiness Directives; NIHON AEROPLANE MANUFACTURING COMPANY: Model YS-11/11A Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | YS-11A-500 | Airworthiness Directives; NIHON AEROPLANE MANUFACTURING COMPANY: Model YS-11/11A Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | YS-11A-600 | Airworthiness Directives; NIHON AEROPLANE MANUFACTURING COMPANY: Model YS-11/11A Series Airplanes |
Unsafe Condition
Loss of both D.C. generator outputs.
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Required Actions
Modify the terminal wiring on the D.C. generators in accordance with Lear Siegler, Inc. Service Bulletin No. 30029-02 dated November 16, 1980. Alternate means of compliance may be used if approved by the FAA. Special flight permits may be issued under FAR 21.197 and 21.199.
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Compliance Time
within the next 250 hours time in service or 90 days, whichever occurs first, after the effective date of this AD
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Affected Aircraft
Mitsubishi Heavy Industries, Ltd. Model YS-11, YS-11A-200, YS-11A-300, YS-11A-500, YS-11A-600 airplanes certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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