Summary
We are adopting a new airworthiness directive (AD) for all Boeing Model 747SP series airplanes. This AD requires repetitive lubrication of the rudder tab hinges and repetitive replacement of the rudder tab control rods. This AD results from reports of freeplay- induced vibration on the control surfaces on Boeing Model 727, 737, 757, and 767 airplanes. We are issuing this AD to prevent damage to the control surface structure during flight, which could result in loss of control of the airplane.
Directive Details
AD Number
FAA-2008-0585
Document Number
E8-25689
Type
Rule
Publication Date
November 12, 2008
Effective Date
December 17, 2008
Affected Manufacturer
Boeing Model 747SP Series
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2008-0585
Topics
Official Documents
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