Service difficulty report · Skin · Boeing 747481

Difficulty date
November 9, 2009
Submitted
May 14, 2010
Operation
Air carrier
Aircraft
N429MC
Make and model
Boeing 747481
Aircraft serial
24833
Aircraft time
77,462 hours, 10,336 cycles
Engine
Ge CF680C2B1F
Part
Skin
Condition
Delaminated
Location
Thrust Reverser
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

NR 4 RH T/R COWL WITH DELAMINATION DAMAGE TO THE OUTER SKIN FROM A PREVIOUS REPAIR, LOCATED AT APPROX 2:00 POSITION. DISPOSITION WAS MADE TO PERFORM A REPAIR BY FILLING THE DAMAGED AREA WITH BMS5-28 POTTING COMPOUND OR EQUIVALENT TO CONTOUR AND APPLY (2) LAYERS OF ALUMINUM FOIL TAPE (SPEED TAPE) EXTENDING MINIMUM 2 INCHES SURROUNDING DAMAGED AREA TO RESTORE OUTER SURFACE CONTOUR AND PREVENT MOISTURE/AIR INGRESS. DVI INSPECDTIONS AFTER EVERY 1 FLIGHT CYLCE UNTIL ACCOMPLISHMENT OF PERMANENT REPAIR AT THE NEXT A CHECK.