# Proposed AD 99-NM-344-AD: British Aerospace BAe Model ATP Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-04-07
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 7, 1999, 64 FR 68296
- Comments due: January 6, 2000
- Became: [AD 2000-04-07](https://openairdocs.org/ad/2000-04-07)
- Docket: 99-NM-344-AD
- FR document: 99-31677
- Official PDF: https://openairdocs.org/files/sha256/22/a0/22a0238253a7646a6f94898bbec795653e80006ae102bed49b6b22677dbce947 (from https://www.govinfo.gov/content/pkg/FR-1999-12-07/pdf/99-31677.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/12/07/99-31677/airworthiness-directives-british-aerospace-bae-model-atp-airplanes
- Page: https://openairdocs.org/proposed/99-NM-344-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all British Aerospace BAe Model ATP airplanes. This proposal would require a one-time detailed visual inspection to detect incorrect installation or discrepancies (damage, bending, overheating, discoloration) of the circuit breaker and the cable terminations of the circuit breaker of the engine de-ice panel. 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 failure of the engine intake de-icing system, which could result in loss of engine intake de-icing capability, accretion of ice in the intake duct, ice ingestion, and consequent engine flameout.

## Notices in this docket

- Dec 7, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-31677, comments due Jan 6, 2000 (https://www.federalregister.gov/documents/1999/12/07/99-31677/airworthiness-directives-british-aerospace-bae-model-atp-airplanes)

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