# Proposed AD FAA-2020-0991: Mooney International Corporation Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-08-15
- Products: Mooney International
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 9, 2021, 86 FR 13502
- Comments due: April 23, 2021
- Became: [AD 2021-08-15](https://openairdocs.org/ad/2021-08-15)
- Docket: FAA-2020-0991 (https://www.regulations.gov/docket/FAA-2020-0991, where comments are filed)
- Project: AD-2020-00539-A
- FR document: 2021-04591
- Official PDF: https://openairdocs.org/files/sha256/71/96/7196918fe28d31087b3dad37392f19f55f1090c9490fa39cd5aa80318ade0d93 (from https://www.govinfo.gov/content/pkg/FR-2021-03-09/pdf/2021-04591.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/03/09/2021-04591/airworthiness-directives-mooney-international-corporation-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C983747CB39BD49D8625869300754DE0.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0991

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Mooney International Corporation (Mooney) Model M20V airplanes. This proposed AD was prompted by reports of short circuit and arcing of the alternator main power cable in the engine compartment. This condition, if unaddressed, could result in a fire hazard, loss of engine thrust control, and reduced control of the airplane. This proposed AD would require inspecting the alternator main power cable and the exhaust crossover tube for damage, replacing damaged parts as necessary, and installing an additional alternator cable clamp. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Dec 14, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-27324, comments due Jan 28, 2021 (https://www.federalregister.gov/documents/2020/12/14/2020-27324/airworthiness-directives-garmin-international-gmn-00962-gts-processor-units-gts-825-gts-855-gts-8000)
- Mar 9, 2021: Notice of proposed rulemaking (NPRM)., FR document 2021-04591, comments due Apr 23, 2021 (https://www.federalregister.gov/documents/2021/03/09/2021-04591/airworthiness-directives-mooney-international-corporation-airplanes)

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