Service difficulty report · Longeron Fitting · Boeing 747409

Difficulty date
June 16, 2011
Submitted
August 19, 2011
Operation
Air carrier
Aircraft
N18707
Make and model
Boeing 747409
Aircraft serial
30764
Aircraft time
47,690 hours, 8,108 cycles
Part
Longeron Fitting
Part number
65B150342324
Condition
Cracked
Location
Fuselage
Stage of operation
IN
How discovered
E
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

(B18707) CRACKS WERE FOUND AT BOTH LT AND RT SIDE LONGERON EXTENSION FITTING WHEN PERFORMING SB INSPECTION. REMOVED AND INSTALLED LONGERON FITTING IAW SB 747-53A2390, FIG 22.