AD Amdt-39-9843

final rule
Data completeness: 70%

Airworthiness Directives; Mitsubishi Heavy Industries, LTD. Models MU-2B-10, -15, -20, -25, -26, -26A, -30, -35, -36, -36A, -40, and -60 Airplanes

AD Number
Amdt-39-9843
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 96-CE-61-AD
FR Citation
61 FR 64270

Applicability

TypeManufacturerModelDetails
aircraft Mitsubishi Heavy Industries Airworthiness Directives; Mitsubishi Heavy Industries, LTD. Models MU-2B-10, -15, -20, -25, -26, -26A, -30, -35, -36, -36A, -40, and -60 Airplanes

Unsafe Condition

Failure of the icing protection system due to operating in conditions beyond its capability, leading to aerodynamic stall at higher than normal airspeeds due to icing conditions.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Revise the AFM's Limitations, Procedures Sections, and MMEL to establish minimum airspeed for sustained level flight in icing conditions, set flap usage limitations, provide hazard recognition cues, specify icing exit procedures, and ensure operability of wing illumination and taxi lights before night flights in icing conditions.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Mitsubishi Heavy Industries, LTD. Models MU-2B-10, -15, -20, -25, -26, -26A, -30, -35, -36, -36A, -40, and -60 airplanes.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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