Service difficulty report · Fairing · Boeing 74747UF

Difficulty date
September 26, 2010
Submitted
September 27, 2010
Operation
Air carrier
Aircraft
N492MC
Make and model
Boeing 74747UF
Aircraft serial
29253
Aircraft time
46,659 hours, 8,622 cycles
Engine
Ge CF680
Part
Fairing
Condition
Damaged
Location
Nr 8 Flap
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 WALK-AROUND INSPECTION, MX REPORTED THE NR 8 FLAP TRACK FAIRING 'CANOE' DAMAGED WITH A CRACK AND 2 DENTS (REF FIG 1). (DISPOSITION WAS MADE TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS, DVI INSPECTIONS AFTER EVERY 5 FLIGHT CYCLES UNTIL ACCOMPLISHMENT OF PERMANENT REPAIR PRIOR TO THE ACCUMULATION OF 1,000 FH (FLIGHT HOURS) AFTER PART 1. REMOVE MOISTURE FROM THE DAMAGED AREA. USE OF VACUUM AND HEAT 125* F (54* C) TO REMOVE MOISTURE FROM HONEYCOMB CELLS IAW SRM 57-53-01, FIG 201, TABLE I. FILL THE DAMAGE WITH BMS5-95 SEALANT OR EQUIVALENT AND APPLY 3 LAYERS OF ALUMINUM FOIL, TAPE (SPEED TAPE) TO PROTECT DAMAGE FROM ENTRANCE OF WATER, SUNLIGHT OR OTHER FOREIGN MATTER.

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