# Proposed AD 99-NM-348-AD: British Aerospace (Jetstream) Model 4101 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-22-09
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 29, 2000, 65 FR 52371
- Comments due: September 28, 2000
- Became: [AD 2000-22-09](https://openairdocs.org/ad/2000-22-09)
- Docket: 99-NM-348-AD
- FR document: 00-21996
- Official PDF: https://openairdocs.org/files/sha256/ae/03/ae03b02ad94a6f87a946e1be09d1dcf8a5b21f1ad249d799c16a74f4c25fde5a (from https://www.govinfo.gov/content/pkg/FR-2000-08-29/pdf/00-21996.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/08/29/00-21996/airworthiness-directives-british-aerospace-jetstream-model-4101-airplanes
- Page: https://openairdocs.org/proposed/99-NM-348-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain British Aerospace (Jetstream) Model 4101 airplanes. This proposal would require inspection of certain components, and corrective action, if necessary. This action is necessary to prevent loosening of the locknut holding the main landing gear (MLG) piston to the ramrod, which could result in detachment of the MLG piston from the ramrod and loss of hydraulic control of the MLG. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Aug 29, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-21996, comments due Sep 28, 2000 (https://www.federalregister.gov/documents/2000/08/29/00-21996/airworthiness-directives-british-aerospace-jetstream-model-4101-airplanes)

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