Transportation Department Docket FAA-2015-7491 Proposed Rule

2016-29679: Airworthiness Directives; General Electric Company Turbofan Engines

Comment Period Closed

Public comment closed .

Get alerted when the next rule lands

New rules open for comment on their own schedule. Pick how you want to hear about them — we email you when one appears.

Alert me on new Transportation Department rules or alert me on a subject

Publishing to members? Embed a live rule tracker on your own site — the proposed rules in your area and the comment deadlines closing on them, updating themselves. Free, one line of HTML.

Create a free account & build one →

Summary

We propose to supersede airworthiness directive (AD) 2016-13- 05, which applies to all General Electric Company (GE) GE90-76B, GE90- 77B, GE90-85B, GE90-90B, and GE90-94B turbofan engines. AD 2016-13-05 requires eddy current inspection (ECI) of the high-pressure compressor (HPC) stage 8-10 spool at each shop visit for all affected engines and ECI or ultrasonic inspection (USI) for certain affected engines. Since we issued AD 2016-13-05, we determined that the risk of the failure of an HPC stage 8-10 spool was excessive without repetitive USI prior to shop visit. This proposed AD would require initial and repetitive on- wing USIs of the HPC stage 8-10 spool for certain engines prior to shop visit and ECI of all affected engines at each shop visit. We are proposing this AD to correct the unsafe condition on these products.

The agency’s own summary, as published.

What this changes

Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.

Don't miss the comment window

One Click Politics alerts you on every deadline, hearing, and rule change.

See all rules with comments due soon →