AD Amdt-39-11216

Recurring final rule
Data completeness: 70%

Airworthiness Directives; MT-Propeller Entwicklung GMBH Models MTV-9-B-C and MTV-3-B-C Propellers

AD Number
Amdt-39-11216
Status
final_rule
Effective Date
Product Category
propeller
Docket
Docket No. 99-NE-35-AD
FR Citation
64 FR 36777

Unsafe Condition

Reports of broken Torx head blade root lag screws, which could result in propeller blade separation and loss of control of the airplane.

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

Required Actions

Inspect Torx head blade root lag screws for torque values and breakage. Replace all broken or insufficiently torqued screws with new lag screws. Replace certain model Torx head blade root lag screws with improved hexagonal head blade root lag screws.

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

Compliance Time

Before further flight

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Affected Aircraft

MT-Propeller Entwicklung GMBH Models MTV-9-B-C and MTV-3-B-C propellers.

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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View Official Source ↗