Service difficulty report · Fitting · Boeing 747422

Difficulty date
August 28, 2019
Submitted
September 3, 2019
Operation
Air carrier
Aircraft
N480MC
Make and model
Boeing 747422
Aircraft serial
28812
Aircraft time
75,274 hours, 8,388 cycles
Part
Fitting
Part number
65B1503422
Part serial
TLS25920
Condition
Cracked
Location
Fuselage
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

RT STA 1480, LONGERON EXTENSION FITTING INSPECTION FOUND LONGERON FITTING CRACK. RT STA 1480, LONGERON FITTING REPLACED AND CARRIED OUT PREVENTATIVE MODIFICATION IAW SB 747-53A2860 R2 PART 8 (BULKHEAD REPAIRED) AND RI 53-12-13684 REV A.