AD Amdt-39-10408

final rule
Data completeness: 70%

Airworthiness Directives; Raytheon (Beech) Model 400, 400A, 400T, MU-300, and MU-300-10 Airplanes

AD Number
Amdt-39-10408
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 97-NM-68-AD
FR Citation
63 FR 13495

Applicability

TypeManufacturerModelDetails
aircraft Raytheon Various Airworthiness Directives; Raytheon (Beech) Model 400, 400A, 400T, MU-300, and MU-300-10 Airplanes

Unsafe Condition

Cracking and consequent failure of the outflow/safety valves, which could result in rapid decompression of the airplane.

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

Required Actions

Replace outflow/safety valves with serviceable valves. Revise the applicability to add an airplane model and remove others, and identify affected serial numbers.

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

Affected Aircraft

Raytheon (Beech) Model 400, 400A, 400T, MU-300, and MU-300-10 airplanes, with specific serial numbers as identified in the AD.

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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