2025-04214RuleWallet

FAA Orders Upgrades on Rolls-Royce Engines to Stop Cracks

Published Date: 3/17/2025

Rule

Summary

If you own certain Rolls-Royce RB211-Trent 970-84 or 972-84 engines, this new rule replaces an old one about checking for cracks in the drains mast. Now, instead of just inspecting, you have to upgrade to a better drains mast and support bracket to keep things safe. This change helps prevent problems and keeps your engine running smoothly without surprise repairs.

Analyzed Economic Effects

1 provisions identified: 0 benefits, 1 costs, 0 mixed.

Mandatory drains mast upgrade required

If you own certain Rolls‑Royce RB211‑Trent 970‑84 or RB211‑Trent 972‑84 engines, this rule (which supersedes AD 2019‑05‑02) requires you to modify the drains mast and the drains support bracket to an improved design instead of performing only repetitive inspections. The change was prompted by cracks found in the transition duct area and is meant to mitigate the unsafe condition.

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Key Dates

Published Date
3/17/2025

Department and Agencies

Department
Independent Agency
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Transportation Department
Federal Aviation Administration
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