# Proposed AD FAA-2024-2330: ATR-GIE Avions de Transport Régional Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-05-11
- Products: ATR – GIE Avions de Transport Régional
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 10, 2024, 89 FR 82190
- Comments due: November 25, 2024
- Became: [AD 2025-05-11](https://openairdocs.org/ad/2025-05-11)
- Docket: FAA-2024-2330 (https://www.regulations.gov/docket/FAA-2024-2330, where comments are filed)
- Project: MCAI-2024-00393-T
- FR document: 2024-23432
- Official PDF: https://openairdocs.org/files/sha256/23/53/235322ccf1aa4d26981b4db73bb031c5a9c6166617837f8e234deb7c5694a9f7 (from https://www.govinfo.gov/content/pkg/FR-2024-10-10/pdf/2024-23432.pdf)
- Federal Register: https://www.federalregister.gov/documents/2024/10/10/2024-23432/airworthiness-directives-atr-gie-avions-de-transport-rgional-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2024-23432-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2024-2330

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42 and ATR72 airplanes. This proposed AD was prompted by a report of a manufacturing defect identified in the lavatory fire extinguisher. This defect could potentially result in leakage at the eutectic tip, leading to a loss of pressure in the cylinder, making fire extinguishing capabilities ineffective. This proposed AD would require an inspection (i.e., weight check) and replacement, as applicable, of certain lavatory compartment fire extinguishers, and would also prohibit the installation of affected parts, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 10, 2024: Notice of proposed rulemaking (NPRM). (first notice), FR document 2024-23432, comments due Nov 25, 2024 (https://www.federalregister.gov/documents/2024/10/10/2024-23432/airworthiness-directives-atr-gie-avions-de-transport-rgional-airplanes)

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