Service difficulty report · Skin · Boeing 747481

Difficulty date
December 29, 2011
Submitted
December 30, 2011
Operation
Air carrier
Aircraft
N429MC
Make and model
Boeing 747481
Aircraft serial
24833
Aircraft time
86,077 hours, 11,895 cycles
System (JASC)
5751 · Ailerons
Part
Skin
Condition
Delaminated
Location
Rt Aileron
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 MX WALKAROUND MX FOUND DAMAGE TO THE RT INBD AILERON T/E WITH DELAMINATION DAMAGE, MEASURING 2.0" X 4.0". THE DAMAGE EXCEEDS THE LIMITS OF THE SRM 57-60-01, FIG 101 ALLOWABLE DAMAGE 1. (DISPOSITION IS TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS; DVI EVERY 1 FLIGHT CYCLE; AND PERMANENT REPAIR PRIOR TO THE ACCUMULATION OF 50 FC (FLIGHT CYCLES) AFTER PART 1.)