# Proposed AD FAA-2011-0230: British Aerospace Regional Aircraft Model HP.137 Jetstream Mk.1, Jetstream Series 200, Jetstream Series 3101, and Jetstream Model 3201 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-11-01
- Products: British Aerospace Regional
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 16, 2011, 76 FR 14349
- Comments due: May 2, 2011
- Became: [AD 2011-11-01](https://openairdocs.org/ad/2011-11-01)
- Docket: FAA-2011-0230 (https://www.regulations.gov/docket/FAA-2011-0230, where comments are filed)
- Project: 2011-CE-004-AD
- FR document: 2011-6097
- Official PDF: https://openairdocs.org/files/sha256/41/a5/41a5fb37a4abdb46d7e65008eab56ff1a15ccd7a478bf5a62a5d9fc1b57fbd54 (from https://www.govinfo.gov/content/pkg/FR-2011-03-16/pdf/2011-6097.pdf)
- Federal Register: https://www.federalregister.gov/documents/2011/03/16/2011-6097/airworthiness-directives-british-aerospace-regional-aircraft-model-hp137-jetstream-mk1-jetstream
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5E4971EDA3A9C0C5862578550047633B.0001
- Page: https://openairdocs.org/proposed/FAA-2011-0230

## 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:

As a result of fatigue-testing programme on Jetstream aeroplanes, cracks have been found on the main landing gear (MLG) fittings that embody modifications JM5218 or JM8003.

This condition, if not detected and corrected, could lead to a MLG collapse on the ground or during landing, possibly resulting in a fuel tank rupture, consequent damage to the aeroplane or injury to the occupants.

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Mar 16, 2011: Notice of proposed rulemaking (NPRM). (first notice), FR document 2011-6097, comments due May 2, 2011 (https://www.federalregister.gov/documents/2011/03/16/2011-6097/airworthiness-directives-british-aerospace-regional-aircraft-model-hp137-jetstream-mk1-jetstream)

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