# Proposed AD 97-NM-226-AD: British Aerospace BAe Model ATP Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-09-05
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 10, 1998, 63 FR 6682
- Comments due: March 12, 1998
- Became: [AD 98-09-05](https://openairdocs.org/ad/98-09-05)
- Docket: 97-NM-226-AD
- FR document: 98-3234
- Official PDF: https://openairdocs.org/files/sha256/a6/cb/a6cb0a47429cad2ea055bf835663fddc50dfd02f2b99c46ff36983140ea4c64f (from https://www.govinfo.gov/content/pkg/FR-1998-02-10/pdf/98-3234.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/02/10/98-3234/airworthiness-directives-british-aerospace-bae-model-atp-airplanes
- Page: https://openairdocs.org/proposed/97-NM-226-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain British Aerospace BAe Model ATP airplanes. This proposal would require repetitive inspections to detect corrosion of the brake hydraulic accumulators in the vicinity of the mounting straps; 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 detect and correct corrosion of the brake hydraulic accumulators, which could lead to loss of hydraulic pressure and consequent loss of braking capability of the airplane.

## Notices in this docket

- Feb 10, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-3234, comments due Mar 12, 1998 (https://www.federalregister.gov/documents/1998/02/10/98-3234/airworthiness-directives-british-aerospace-bae-model-atp-airplanes)

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