Summary
We are adopting a new airworthiness directive (AD) for Bell Model 206L-4 and 407 helicopters. This AD requires replacing or reworking certain aft bearing caps. This AD was prompted by the manufacture of certain freewheel aft bearing caps without a lubrication channel to allow oil flow into the aft bearing support assembly. The actions of this AD are intended to prevent failure of the freewheel unit and subsequent loss of control of the helicopter.
Directive Details
AD Number
FAA-2013-0526
Document Number
2013-25310
Type
Rule
Publication Date
October 31, 2013
Effective Date
December 5, 2013
Affected Manufacturer
Bell Helicopter Textron Canada (Bell)
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2013-0526
Topics
Official Documents
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