# Proposed AD 99-NM-115-AD: British Aerospace (Jetstream) Model 4101 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 99-21-12
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 15, 1999, 64 FR 38157
- Comments due: August 16, 1999
- Became: [AD 99-21-12](https://openairdocs.org/ad/99-21-12)
- Docket: 99-NM-115-AD
- FR document: 99-18104
- Official PDF: https://openairdocs.org/files/sha256/82/aa/82aabd9eda87421a655146e09ebacc429b9902ce3aa36003bd591df23e676826 (from https://www.govinfo.gov/content/pkg/FR-1999-07-15/pdf/99-18104.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/07/15/99-18104/airworthiness-directives-british-aerospace-jetstream-model-4101-airplanes
- Page: https://openairdocs.org/proposed/99-NM-115-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all British Aerospace (Jetstream) Model 4101 airplanes. This proposal would require a one-time visual inspection of the conduit pipe for distortion or repairs, and replacement of the conduit pipe with a new pipe, if necessary. This proposal would also require replacement of the cable assemblies to the fuel standby pumps with new cable assemblies that have improved sheathing protection. 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 electrical arcing due to damaged fuel standby pump cable assemblies and conduit pipes, which could create a possible ignition source, and consequent fire hazard.

## Notices in this docket

- Jul 15, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-18104, comments due Aug 16, 1999 (https://www.federalregister.gov/documents/1999/07/15/99-18104/airworthiness-directives-british-aerospace-jetstream-model-4101-airplanes)

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