Service difficulty report · Skin · Boeing 74747UF

Difficulty date
February 18, 2011
Submitted
February 23, 2011
Operation
Air carrier
Aircraft
N409MC
Make and model
Boeing 74747UF
Aircraft serial
30558
Aircraft time
66,209 hours, 11,217 cycles
Engine
Ge CF680
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

MAJOR REPAIR. DURING WALK-AROUND INSP. MX FOUND THE NR 4 RT THRUST REVERSER TRANSLATING COWL WITH DELAMINATION DAMAGE TO THE OUTER SKIN, LOCATED APPROX AT THE 3 O'CLOCK POSITION (REF FIG 1 AND 2). (DISPOSITION WAS MADE TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS, DVI INSP AFTER EVERY 5 FLIGHT CYCLE UNTIL ACCOMPLISHMENT OF PERMANENT REPAIR PRIOR TO THE ACCUMULATION OF 1,000 FH (FLIGHT HOURS) AFTER PART 1.)

More about the Boeing 747-47UF