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Final ruleTook effect July 14, 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 June 29, 2026. Document 2026-13058. Updated Nov. 9, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney Canada Corp. (P&WC) Model PW210A, PW210A1, and PW210S engines. This AD was prompted by reports of circumferential cracks found at the turbine exhaust frame external surface caused by thermal stress from engine starts. This AD requires repetitive visual inspections of the turbine exhaust frame for cracks 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

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

Since then:

What happens next and when

This AD is effective July 14, 2026. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of July 14, 2026. The FAA must receive comments on this AD by August 13, 2026.

The agency's dates, word for word.

Document number2026-13058
ActionFinal rule; request for comments.
AgenciesTransportation Department; Federal Aviation Administration
PublishedJune 29, 2026
Effective dateJuly 14, 2026
Comments closeAug. 13, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-4665

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