# 2026-06691: Boeing 787 Pilots: FAA Demands Crack Checks on Engines Now

2026-06691, Airworthiness Directives; The Boeing Company Airplanes, is a Federal Register proposed rule from Transportation Department, Federal Aviation Administration published 2026-04-07, effective The FAA must receive comments on this proposed AD by May 22, 2026.; PRIA reads it as touching household money (as of 2026-06-11).

- Canonical: https://policyrisk.com/federal-register/2026-06691
- As of: 2026-06-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-06691
- Title: Airworthiness Directives; The Boeing Company Airplanes
- Type: Proposed Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 17614
- Published: 2026-04-07
- Effective: The FAA must receive comments on this proposed AD by May 22, 2026.
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: 2120-AA64
- Last updated: 2026-06-11

## In one line

Boeing 787 Pilots: FAA Demands Crack Checks on Engines Now

## Summary

The FAA wants all Boeing 787-8, 787-9, and 787-10 planes to get regular checks for cracks on a key engine part called the thrust reverser V-blade. These inspections will help keep flights safe by catching problems early. Airlines need to comment by May 22, 2026, and be ready for ongoing inspections that might cost some time and money but keep everyone flying safely.

## Abstract

The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This proposed AD was prompted by reports of fatigue cracks found on the thrust reverser (TR) outer V-blade (OVB) during scheduled maintenance and inspections. This proposed AD would require repetitive inspections of the upper, center, and lower segments of the OVB and the inner radius of the OVB for any crack and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Effects PRIA read

- Boeing 787 thrust-reverser inspections: cost, medium. The FAA proposes required repetitive inspections of the thrust reverser outer V-blade (OVB) and inner radius on all Boeing Model 787-8, 787-9, and 787-10 airplanes to find cracks and require on-condition actions (HFEC inspection at crack location, restoring dry film lubricant, or replacing a thrust…

## Related documents

- [2026-15585](https://policyrisk.com/federal-register/2026-15585): Requirements for Interference-Tolerant Radio Altimeter Systems, 2026-07-31
- [2026-13440](https://policyrisk.com/federal-register/2026-13440): Enabling Supersonic Overland Flight, 2026-07-02
- [2026-13126](https://policyrisk.com/federal-register/2026-13126): Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility; Extension of Comment Period, 2026-06-30
- [2026-08943](https://policyrisk.com/federal-register/2026-08943): Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility, 2026-05-06
- [2025-04846](https://policyrisk.com/federal-register/2025-04846): Extension of the Prohibition Against Certain Flights in the Territory and Airspace of Libya, 2025-03-20
- [2025-03853](https://policyrisk.com/federal-register/2025-03853): Enforcement Policy Regarding “Drug and Alcohol Testing of Certificated Repair Station Employees Located Outside of the United States; Corre…, 2025-03-11

## Sources
- [2026-06691 on federalregister.gov](https://www.federalregister.gov/documents/2026/04/07/2026-06691/airworthiness-directives-the-boeing-company-airplanes)
- [2026-06691 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-04-07/pdf/2026-06691.pdf)

## Related
- [Previous: 2026-06690, Airworthiness Directives; Bell Textron Canada Limited Helicopters](https://policyrisk.com/federal-register/2026-06690)
- [Next: 2026-06726, Fees for the Unified Carrier Registration Plan and Agreement](https://policyrisk.com/federal-register/2026-06726)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-06691 (as of 2026-06-11).