AD 81-06-01 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU- 2B-25 and MU-2B-26 Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-10 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU- 2B-25 and MU-2B-26 Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-15 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU- 2B-25 and MU-2B-26 Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-20 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU- 2B-25 and MU-2B-26 Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-25 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU- 2B-25 and MU-2B-26 Series Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-26 | Airworthiness Directives; Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU- 2B-25 and MU-2B-26 Series Airplanes |
Unsafe Condition
A possible inflight fire in the engine aft nacelle area.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install the braided asbestos seal on both engine aft nacelles within 50 hours time-in-service. Modify the engine aft nacelle area and wing trailing edge on serial numbers 005 through 204 within 100 hours time-in-service. Equivalent methods require approval from the Chief, Engineering and Manufacturing District Office.
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Compliance Time
Within the next 50 hours time-in-service after the effective date of this AD
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Affected Aircraft
Mitsubishi Heavy Industries, Ltd. Models MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU-2B-25, MU-2B-26 (all serial numbers up through and including 347, except Serial Numbers 313 and 321). Excludes serial numbers with the suffix 'SA'.
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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