AD 75-03-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-26 | Airworthiness Directives; Mitsubishi Models MU-2B-26 and MU-2B-36 Airplanes |
| aircraft | Mitsubishi Heavy Industries, Ltd. | MU-2B-36 | Airworthiness Directives; Mitsubishi Models MU-2B-26 and MU-2B-36 Airplanes |
Unsafe Condition
Cracks and optical distortion in the front windshield outer panes caused by discharge of unusually hot defogging air from an air conditioning system failure.
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Required Actions
Before further flight and daily prior to first takeoff, visually check outer lower edges of left and right front windshield outer panes for cracks and oval distortions. Replace cracked or distorted panes per FAR 43.13 and correct air conditioning malfunctions. Discontinue checks after installing Mitsubishi Service Recommendation No. 027 or equivalent.
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Compliance Time
Before further flight and thereafter prior to the first takeoff each day
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Affected Aircraft
Mitsubishi Models MU-2B-26 (S/N 328 and below) and MU-2B-36 (S/N 673 and below), except those modified per Mitsubishi Service Recommendation No. 027 or FAA equivalent.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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