# Proposed AD FAA-2020-0781: Mitsubishi Heavy Industries, Ltd. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-26-14
- Products: Mitsubishi Heavy Industries
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 25, 2020, 85 FR 52281
- Comments due: October 9, 2020
- Became: [AD 2020-26-14](https://openairdocs.org/ad/2020-26-14)
- Docket: FAA-2020-0781 (https://www.regulations.gov/docket/FAA-2020-0781, where comments are filed)
- FR document: 2020-18562
- Official PDF: https://openairdocs.org/files/sha256/20/ef/20ef3fc2d4ceb79b921df83b3c5481f5eb2973d456636e24273e649f081aa843 (from https://www.govinfo.gov/content/pkg/FR-2020-08-25/pdf/2020-18562.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/08/25/2020-18562/airworthiness-directives-mitsubishi-heavy-industries-ltd-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A1E3C6C53CEEA765862585CF004C1961.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0781

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 75- 16-20, which applies to all Mitsubishi Model MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU-2B-25, MU-2B-26, MU-2B-30, MU-2B-35, and MU-2B-36 airplanes. AD 75-16-20 requires repetitive inspections of the propeller pitch control (PPC) lever for security and proper rigging. Since the FAA issued AD 75-16-20, the FAA received additional reports of the PPC lever linkage disconnecting at the engine. In addition, Mitsubishi has type certificated additional airplanes that are subject to the unsafe condition. This proposed AD would require modification and repetitive inspections of the PPC lever linkage. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 25, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-18562, comments due Oct 9, 2020 (https://www.federalregister.gov/documents/2020/08/25/2020-18562/airworthiness-directives-mitsubishi-heavy-industries-ltd-airplanes)

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