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Final ruleTook effect Aug. 31, 2026

Airworthiness Directives; Pratt & Whitney Canada Corp. Engines

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Aug. 14, 2026. Document 2026-16655. Updated Nov. 7, 2026.

What it does

The FAA is superseding Airworthiness Directive (AD) 2026-13- 09, which applied to all Pratt & Whitney Canada Corp. (P&WC) Model PW210A, PW210A1, and PW210S engines. AD 2026-13-09 required repetitive visual inspections of the turbine exhaust frame for cracks and, depending on the results of the inspections, replacement of the turbine exhaust frame. Since the FAA issued AD 2026-13-09, a manufacturer's analysis revealed that turbine exhaust frames manufactured from a certain material were less durable and more susceptible to developing cracks under thermal stress. This AD requires repetitive visual inspections of the turbine exhaust frame for cracks at different initial inspection thresholds than required by AD 2026-13-09 based on the material used during manufacture and, depending on the results of the inspections, replacement of the turbine exhaust frame. The FAA is issuing this AD to address the unsafe condition on these products.

The Federal Aviation Administration's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Federal Aviation Administration has published 482 final rules in 2026 so far, compared with 518 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

Before this

950 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

This AD is effective August 31, 2026.

The agency's dates, word for word.

Document number2026-16655
ActionFinal rule; request for comments.
AgenciesTransportation Department; Federal Aviation Administration
PublishedAug. 14, 2026
Effective dateAug. 31, 2026
Comments closeSept. 28, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-7238

Source: the Federal Register (public domain). The document in the Federal Register