Service difficulty report · Structure · Boeing 747412F

Difficulty date
July 8, 2018
Submitted
July 16, 2018
Operation
Air carrier
Aircraft
N489MC
Make and model
Boeing 747412F
Aircraft serial
26553
Aircraft time
93,789 hours, 16,571 cycles
Part
Structure
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

ATA 53-10, EO 4453A024 PART 1 DURING ACCOMPLISHMENT OF HFEC OPEN HOLE INSPECTION AT BS 2231 STR 16L, FOUND 03 EA CRACK INDICATION AT LOWER MOST FWD FASTENER HOLE, ON 2ND AND 3RD LAYER AT 3 O'CLOCK AND 6 O'CLOCK POSITION AS MARKED. 03 EA CRACKED FASTENER HOLE AT BS 2231 STR S-16L REPAIRED AS PER EN 1115-18 REV '-'.