Service difficulty report · Longeron · Boeing 747412F

Difficulty date
June 27, 2023
Submitted
June 27, 2023
Operation
General aviation
Aircraft
N9VSFP
Make and model
Boeing 747412F
Aircraft serial
32902
Aircraft time
74,763 hours, 13,765 cycles
Part
Longeron
Part number
65B146816
Part serial
NK
Condition
Cracked
Location
Zone 100
Part time
1,000 cycles
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

9V-SFP, IS CURRENTLY IN SIAEC HANGAR FOR ROUTINE MAINTENANCE. DURING ACCOMPLISHMENT OF ADSI IB744530203 – INSPECTION OF LONGERON EXTENSION FITTING (BODY STA 1480 TO 1540) AFTER TEMPORARY REPAIR - LH SIDE IAW IB744530203, 2 HOLES ON THE LH SPLICE FITTING WERE FOUND CRACKED. REPAIR IS IN PROGRESS AND THIS WAS DUE TO FATIGUE (AD 2020-15-14 REFERS).