# Proposed AD FAA-2007-27213: 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: Comment period closed
- Products: British Aerospace
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 15, 2007, 72 FR 12133
- Comments due: April 16, 2007
- Docket: FAA-2007-27213 (https://www.regulations.gov/docket/FAA-2007-27213, where comments are filed)
- Project: 2007-CE-012-AD
- FR document: E7-4739
- Official PDF: https://openairdocs.org/files/sha256/8b/12/8b1288f6fe19082964f45d33c5dfcb2ebb1840add863517fff09e89c239bfa7e (from https://www.govinfo.gov/content/pkg/FR-2007-03-15/pdf/E7-4739.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/03/15/E7-4739/airworthiness-directives-british-aerospace-regional-aircraft-model-hp137-jetstream-mk1-jetstream
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3D994FCCF02A68A78625729F005F8703.0001
- Page: https://openairdocs.org/proposed/FAA-2007-27213

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. 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:

Cracking has been found in the nose landing gear steering jack piston rod adjacent to the eye-end. This was caused by the application of excessive tightening torque applied to the eye-end whilst being assembled during component overhaul. Failure of the steering jack piston during operation will result in loss of nose wheel steering, which may lead to loss of directional control during critical phases of take-off and landing.

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

## Notices in this docket

- Mar 15, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-4739, comments due Apr 16, 2007 (https://www.federalregister.gov/documents/2007/03/15/E7-4739/airworthiness-directives-british-aerospace-regional-aircraft-model-hp137-jetstream-mk1-jetstream)

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