Airworthiness Directives; Rolls-Royce plc RB211 Trent 875, 877, 884, 884B, 892, 892B, and 895 Series Turbofan Engines
airworthiness · Rule · Final rule. · Published 2005-09-12 · Effective 2005-10-17 · 70 FR 53725
Document
Document number
05-17976
Federal Register citation
70 FR 53725
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2005-09-12
Effective date
2005-10-17
FAA docket
Docket No. 2001-NE-17-AD
Abstract
The FAA is revising an existing airworthiness directive (AD) for Rolls-Royce plc (RR) RB211 Trent 875, 877, 884, 884B, 892, 892B, and 895 series turbofan engines with certain part number (P/N) low pressure compressor (LPC) fan blades installed. That AD currently requires initial and repetitive ultrasonic inspections of the fan blade dovetail roots and defines a specific terminating action to the repetitive blade inspection requirements. This AD requires the same actions but clarifies the terminating action. We are issuing this AD to prevent multiple LPC fan blade failures due to cracks, which could result in uncontained engine failure and possible damage to the airplane.