AD 80-15-03
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, and MU-2B-25 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, and MU-2B-25 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, and MU-2B-25 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, and MU-2B-25 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, and MU-2B-25 Series Airplanes |
Unsafe Condition
Possible fire due to the baggage of the rear baggage compartment coming into contact with engine bleed air tubing.
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Required Actions
Install heatproof insulation between the engine bleed air tubing and the rear baggage compartment per Mitsubishi Service Bulletin No. 070C within 50 hours time in service. Modify the baggage compartment ceiling per Mitsubishi Service Bulletin No. 182 within 100 hours time in service. Aircraft modified with Service Recommendation No. 033 or 033A are exempt from the ceiling modification.
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Compliance Time
Within the next 50 hours time in service after the effective date of this AD for insulation installation and within the next 100 hours time in service after the effective date for baggage compartment ceiling modification.
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Affected Aircraft
Mitsubishi Heavy Industries, Ltd. Models MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, and MU-2B-25 with serial numbers 005 through 164.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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