# Proposed AD 98-NM-296-AD: British Aerospace (Jetstream) Model 4101 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 99-25-06
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 8, 1999, 64 FR 54795
- Comments due: November 8, 1999
- Became: [AD 99-25-06](https://openairdocs.org/ad/99-25-06)
- Docket: 98-NM-296-AD
- FR document: 99-26278
- Official PDF: https://openairdocs.org/files/sha256/bc/35/bc35bc13c51bfad7d50004c9a744c6d4091b39b7bfe991398b1c8cb480907398 (from https://www.govinfo.gov/content/pkg/FR-1999-10-08/pdf/99-26278.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/10/08/99-26278/airworthiness-directives-british-aerospace-jetstream-model-4101-airplanes
- Page: https://openairdocs.org/proposed/98-NM-296-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 a one- time inspection of the bottom aft roller of the main baggage-bay door structure for cracking or damage to the sub-frame; repetitive operational tests to determine if the counter-balance motor functions properly; and corrective actions, if necessary. This proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed AD are intended to prevent sub-frame damage, which, if left undetected, could cause rapid decompression of the airplane and consequent injury to passengers and crew.

## Notices in this docket

- Oct 8, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-26278, comments due Nov 8, 1999 (https://www.federalregister.gov/documents/1999/10/08/99-26278/airworthiness-directives-british-aerospace-jetstream-model-4101-airplanes)

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