Summary
We are adopting a new airworthiness directive (AD) for all Learjet Inc. Model 45 airplanes. This AD was prompted by a report of the potential for fatigue cracking of the end cap of the main landing gear (MLG) prior to the published life limitation. This AD requires revising the maintenance program to incorporate life limits for the MLG actuator end cap. We are issuing this AD to prevent fatigue cracking of the end cap of the MLG, which could result in the failure of the MLG actuator upon landing, and failure of the MLG to extend or retract during flight.
Directive Details
AD Number
FAA-2011-0651
Document Number
2011-30999
Type
Rule
Publication Date
December 19, 2011
Effective Date
January 23, 2012
Affected Manufacturer
Learjet Inc.
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2011-0651
Topics
Official Documents
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