Airworthiness Directives; Bombardier, Inc. Airplanes
airworthiness · Rule · Final rule. · Published 2016-01-13 · Effective 2016-02-17 · 81 FR 1508
Document
Document number
2015-33288
Federal Register citation
81 FR 1508
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2016-01-13
Effective date
2016-02-17
FAA docket
Docket No. FAA-2014-1049
Abstract
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This AD was prompted by reports that the horizontal stabilizer trim actuator (HSTA) spur gear bolts inside the gearbox were found loose, broken, or backed out due to incorrect bending of the anti-rotation tab washer and the improper application of Loctite glue during installation. This AD requires replacing certain HSTAs with a new HSTA. This AD also requires revising the airplane flight manual (AFM) and the maintenance or inspection program, as applicable. We are issuing this AD to prevent failure of the HSTA and subsequent loss of control of the airplane.