SDR SB07016

Service difficulty report · Flap · Boeing 7374B7

Difficulty date
February 21, 2007
Submitted
February 22, 2007
Operation
Air carrier
Aircraft
N459UW
Make and model
Boeing 7374B7
Aircraft serial
25023
Part
Flap
Part number
654643489MC
Part serial
1782
Condition
Out Of Rig
Location
Lt Wing
Part time
20,293 hours, 13,684 cycles
Stage of operation
DE
How discovered
O
Nature of condition
F
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CLT FLT750 ON DESCENT INTO CLT FROM GCM, WHEN FLAPS WERE SELECTED TO 30 UNITS, THE AIRCRAFT ROLLS TO THE LEFT. WINGS CAN BE KEPT LEVEL WITH 3 DEGREES OF RIGHT AILERON. FUEL WAS BALANCED. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE CABLE DRUM CLUTCH SLIPPED IN THE LEFT INBOARD MIDFLAP DUE TO THE AFT FLAP BINDING. RESET CLUTCH. FOUND DEADWEIGHT ROLLERS ON AFT FLAP NOT RIGGED CORRECTLY. ADJUSTED AFT FLAP PER MM 27-51-11-404. FLAPS TEST GOOD.

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