# 2026-00837: Boeing 787s Scrutinize Turbine Fittings for Alloy Errors

2026-00837, Airworthiness Directives; The Boeing Company Airplanes, is a Federal Register rule from Transportation Department, Federal Aviation Administration published 2026-01-16, effective 2026-02-20 (as of 2026-06-11).

- Canonical: https://policyrisk.com/federal-register/2026-00837
- As of: 2026-06-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-00837
- Title: Airworthiness Directives; The Boeing Company Airplanes
- Type: Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 2078
- Published: 2026-01-16
- Effective: 2026-02-20
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: 2120-AA64
- Last updated: 2026-06-11

## In one line

Boeing 787s Scrutinize Turbine Fittings for Alloy Errors

## Summary

The FAA is making sure certain Boeing 787-9 and 787-10 planes are super safe by checking if a key part, the ram air turbine forward fitting, is made from the right titanium alloy. Starting February 20, 2026, airlines must inspect this part using special tools and fix any problems found. This keeps flights safe without causing big delays or costs.

## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-9 and 787-10 airplanes. This AD was prompted by reports of multiple supplier notices of escapement (NOEs) indicating that ram air turbine (RAT) forward fittings were possibly manufactured with an incorrect titanium alloy material. This AD requires a high frequency eddy current (HFEC) or handheld X-ray fluorescence (XRF) spectrometer inspection of the RAT forward fitting to determine the titanium alloy material and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.

## Effects PRIA read

- Required safety inspections for 787-9/10: benefit, high. If you fly on Boeing Model 787-9 or 787-10 airplanes, the FAA requires operators to inspect the ram air turbine (RAT) forward fitting to confirm the titanium alloy starting February 20, 2026. The inspection must use a high frequency eddy current (HFEC) or a handheld X-ray fluorescence (XRF) spectro…
- Inspection cost for U.S. operators: cost, low. U.S. operators must pay for an inspection estimated at 3 work-hours per airplane (3 x $85/hour = $255) using HFEC or handheld XRF. The FAA estimates this AD affects 9 U.S.-registered airplanes, for an estimated total inspection cost to U.S. operators of $2,295.
- Potential replacement and repair costs: cost, high. If inspections find incorrect material, on-condition actions include open-hole HFEC inspections and replacing any RAT forward fitting not made from the correct alloy; the FAA estimates a replacement could cost $30,515 per product (labor $255 + parts $30,260). The FAA notes it cannot predict how man…

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## Sources
- [2026-00837 on federalregister.gov](https://www.federalregister.gov/documents/2026/01/16/2026-00837/airworthiness-directives-the-boeing-company-airplanes)
- [2026-00837 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-01-16/pdf/2026-00837.pdf)

## Related
- [Previous: 2026-00835, Tribal General Welfare Benefits; Correction](https://policyrisk.com/federal-register/2026-00835)
- [Next: 2026-00838, Airworthiness Directives; The Boeing Company Airplanes](https://policyrisk.com/federal-register/2026-00838)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-00837 (as of 2026-06-11).