Service difficulty report · Skin · Boeing 7474H6

Difficulty date
September 21, 2009
Submitted
September 29, 2009
Operation
Air carrier
Aircraft
N740WA
Make and model
Boeing 7474H6
Aircraft serial
25700
Aircraft time
64,732 hours, 8,643 cycles
Part
Skin
Part number
65B156296
Condition
Worn
Location
Rt Wing
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING C-CHECK, MAINTENANCE DISCOVERED 11 FASTENERS WORN AND 4 FASTENER HOLES ENLARGED ON THE RIGHT WING FIXED LEADING EDGE NOSE OUTER SKIN AT ILES 330.00. CORRECTIVE ACTION WAS TO REPAIR THE SKIN PER B747-400 SRM 57-41-01 REPAIR 5, DETAIL I, REV 73. REQUIRED REMOVAL AND RE-INSTALLATION OF THE NUMBER 14 KRUEGER FLAP.

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