# Proposed AD FAA-2013-0130: Hartzell Propeller, Inc. Propellers

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-15-04
- Products: Hartzell Propeller
- Product type: Propeller
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 26, 2013, 78 FR 18255
- Comments due: May 28, 2013
- Became: [AD 2013-15-04](https://openairdocs.org/ad/2013-15-04)
- Docket: FAA-2013-0130 (https://www.regulations.gov/docket/FAA-2013-0130, where comments are filed)
- Project: 2013-NE-07-AD
- FR document: 2013-06843
- Official PDF: https://openairdocs.org/files/sha256/b7/a6/b7a60373375078d14a529315bee533b20497c132d38ea27b5f708a231a0d07ed (from https://www.govinfo.gov/content/pkg/FR-2013-03-26/pdf/2013-06843.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/03/26/2013-06843/airworthiness-directives-hartzell-propeller-inc-propellers
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CDE4D92E7DEEB56A86257B3A0049EA06.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0130

## Summary

We propose to adopt a new airworthiness directive (AD) for Hartzell Propeller, Inc. propeller models HC-(1, D)2(X, V, MV)20-7, HC- (1, D)2(X, V, MV)20-8 and HC-(1, D)3(X, V, MV)20-8. This proposed AD was prompted by failures of the propeller hydraulic bladder diaphragm and resulting engine oil leak. This proposed AD would require replacement of the propeller hydraulic bladder diaphragm. We are proposing this AD to prevent propeller hydraulic bladder diaphragm rupture, loss of engine oil, damage to the engine, and loss of the airplane.

## Notices in this docket

- Mar 26, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-06843, comments due May 28, 2013 (https://www.federalregister.gov/documents/2013/03/26/2013-06843/airworthiness-directives-hartzell-propeller-inc-propellers)

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