# Proposed AD FAA-2008-0275: BAE Systems (Operations) Limited (Jetstream) Model 4101 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-13-02
- Products: BAE Systems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 13, 2008, 73 FR 13504
- Comments due: April 14, 2008
- Became: [AD 2008-13-02](https://openairdocs.org/ad/2008-13-02)
- Docket: FAA-2008-0275 (https://www.regulations.gov/docket/FAA-2008-0275, where comments are filed)
- Project: 2007-NM-335-AD
- FR document: E8-5000
- Official PDF: https://openairdocs.org/files/sha256/36/55/365582fbd096c87896ae1906fd62d05a6ffdb3a656cc3f26b830eea9e6c783da (from https://www.govinfo.gov/content/pkg/FR-2008-03-13/pdf/E8-5000.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/03/13/E8-5000/airworthiness-directives-bae-systems-operations-limited-jetstream-model-4101-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D7EF98B8719295CD8625740C004CE371.0001
- Page: https://openairdocs.org/proposed/FAA-2008-0275

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Cracks have been found in the propeller blades and propeller hubs, for which ongoing controlling actions issued by the propeller TC [type certificate] holder (McCauley Propeller Systems) have been mandated by FAA Airworthiness Directive (AD) action. Current FAA ADs related to this subject are 2003-17-10 (which superseded AD 2003-15-01), 2004-23-16, 2005-24-08 and 2006-15-13. Cracking of the blade or hub can ultimately lead to blade release with potentially catastrophic consequences. * * * * * * * * The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Mar 13, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-5000, comments due Apr 14, 2008 (https://www.federalregister.gov/documents/2008/03/13/E8-5000/airworthiness-directives-bae-systems-operations-limited-jetstream-model-4101-airplanes)

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