# Proposed AD FAA-2026-2278: ATR-GIE Avions de Transport Régional Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-09-13
- Products: ATR – GIE Avions de Transport Régional
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 26, 2026, 91 FR 9510
- Comments due: April 13, 2026
- Became: [AD 2026-09-13](https://openairdocs.org/ad/2026-09-13)
- Docket: FAA-2026-2278 (https://www.regulations.gov/docket/FAA-2026-2278, where comments are filed)
- Project: MCAI-2025-00628-T
- FR document: 2026-03805
- Official PDF: https://openairdocs.org/files/sha256/fb/b9/fbb9cfeb8bd0669415a8e0500542c9eab6cc02e190c6781cec81f4ad56d88d39 (from https://www.govinfo.gov/content/pkg/FR-2026-02-26/pdf/2026-03805.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/02/26/2026-03805/airworthiness-directives-atr-gie-avions-de-transport-rgional-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-03805-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-2278

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42-200, - 300, and -320 airplanes. This proposed AD was prompted by a report of an occurrence of a flap asymmetry detector and flap interconnection shaft having worn splines and not engaging mechanically. This proposed AD would require a special detailed inspection (SDI) of the affected flap asymmetry detection mechanism, and applicable corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 26, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-03805, comments due Apr 13, 2026 (https://www.federalregister.gov/documents/2026/02/26/2026-03805/airworthiness-directives-atr-gie-avions-de-transport-rgional-airplanes)

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