Airworthiness Directives; CFM International S.A. Turbofan Engines
airworthiness · Rule · Final rule; request for comments. · Published 2019-06-18 · Effective 2019-07-03 · 84 FR 28202
Document
Document number
2019-13022
Federal Register citation
84 FR 28202
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
CFM International S.A. Turbofan
Publication date
2019-06-18
Effective date
2019-07-03
FAA docket
Docket No. FAA-2019-0414
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain CFM International S.A. (CFM) LEAP-1B21, -1B23, -1B25, -1B27, - 1B28, -1B28B1, -1B28B2, -1B28B3, -1B28B2C, -1B28BBJ1, and -1B28BBJ2 model turbofan engines. This AD requires initial and repetitive inspections of the transfer gearbox (TGB) scavenge screens and, depending on the results of the inspection, possible removal of the engine from service. This AD was prompted by multiple reports of in- flight shutdowns (IFSDs) due to radial drive shaft (RDS) bearing failure. The FAA is issuing this AD to address the unsafe condition on these products.