# Airworthiness Directives; British Aerospace (Jetstream) Model 4101 Airplanes
> **Rule** · Final rule. · Published 1998-09-03 · Effective 1998-10-08 · 63 FR 46873
## Document
- **Document number:** 98-23602
- **Category:** airworthiness
- **Manufacturer:** British Aerospace (Jetstream) Model 4101
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 63 FR 46873
- **Publication date:** 1998-09-03
- **Effective date:** 1998-10-08
- **FAA docket:** Docket No. 98-NM-167-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain British Aerospace (Jetstream) Model 4101 airplanes, that requires modification of the attach points of the uplock system of the nose landing gear (NLG). This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent wear of the attach points of the uplock system of the NLG; such wear could result in damage to the adjacent emergency hydraulic system, or jamming of the uplock system and consequent inability to extend and retract the NLG.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/09/03/98-23602/airworthiness-directives-british-aerospace-jetstream-model-4101-airplanes)
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