# Proposed AD 95-CE-44-AD: Jetstream Aircraft Limited HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 97-10-05
- Action: Supplemental notice of proposed rulemaking (NPRM); Reopening of the comment period.
- Published: December 17, 1996, 61 FR 66238
- Comments due: February 28, 1997
- Became: [AD 97-10-05](https://openairdocs.org/ad/97-10-05)
- Docket: 95-CE-44-AD
- FR document: 96-31950
- Official PDF: https://openairdocs.org/files/sha256/f6/64/f6641f20903b8ef00581e71c3f8b209848786e30681dfbb31b31a798a745ce99 (from https://www.govinfo.gov/content/pkg/FR-1996-12-17/pdf/96-31950.pdf)
- Federal Register: https://www.federalregister.gov/documents/1996/12/17/96-31950/airworthiness-directives-jetstream-aircraft-limited-hp137-mk1-jetstream-series-200-and-jetstream
- Page: https://openairdocs.org/proposed/95-CE-44-AD

## Summary

This document proposes to revise an earlier proposed airworthiness directive (AD) that would have required the following on Jetstream Aircraft Limited (JAL) HP137 Mk1, Jetstream series 200, and Jetstream Models 3101 and 3201 airplanes: repetitively inspecting the main landing gear (MLG) pintle to cylinder interface for cracks, and replacing any MLG cylinder that has a crack of any length. The proposed AD results from reports of MLG cracks in the area of the pintle to cylinder interface on three of the affected airplanes. Since publication of that proposal, the Federal Aviation Administration (FAA) has determined that the proposed action is still a valid safety issue, but that more stringent repetitive inspection intervals should be established than what was earlier proposed. This proposed AD revises the previous proposal by incorporating this change. The actions specified by the proposed AD are intended to prevent failure of the MLG caused by cracks in the pintle to cylinder interface area, which could result in loss of control of the airplane during landing operations. Since the comment period for the previous proposal has closed and the change described above goes beyond the scope of what was previously proposed, the FAA is allowing additional time for the public to comment.

## Notices in this docket

- Sep 19, 1995: Notice of proposed rulemaking (NPRM). (first notice), FR document 95-23218, comments due Nov 17, 1995 (https://www.federalregister.gov/documents/1995/09/19/95-23218/airworthiness-directives-jetstream-aircraft-limited-hp137-mk1-jetstream-series-200-and-jetstream)
- Mar 25, 1996: Supplemental notice of proposed rulemaking (NPRM); Reopening of the comment period., FR document 96-7150, comments due May 24, 1996 (https://www.federalregister.gov/documents/1996/03/25/96-7150/airworthiness-directives-jetstream-aircraft-limited-hp137-mk1-jetstream-series-200-and-jetstream)
- Dec 17, 1996: Supplemental notice of proposed rulemaking (NPRM); Reopening of the comment period., FR document 96-31950, comments due Feb 28, 1997 (https://www.federalregister.gov/documents/1996/12/17/96-31950/airworthiness-directives-jetstream-aircraft-limited-hp137-mk1-jetstream-series-200-and-jetstream)

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