SDR DALA1106516308

Service difficulty report · Bulkhead · Boeing 747451

Difficulty date: January 27, 2011
Submitted: January 27, 2011
Operation: Air carrier
Aircraft: N668US
Make and model: Boeing 747451
Aircraft serial: 24223
Aircraft time: 88,742 hours, 10,970 cycles
System (JASC): 5312 · Fuselage Main, Bulkhead
Part: Bulkhead
Condition: Cracked
Location: Bs 2598
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 PERFORM OPEN HOLE HFEC INSPECTION, CRACK WAS FOUND IN 1 OF THE HOLE ON BS 2598 BULKHEAD REPAIRED ER/A488618-14, REV1. ER/A488618-14, REV 2 PERFORMED REPAIR IAW SRM53-80-08, REPAIR 11. OPEN HOLE AND SURFACE EDDY CURRENT. INSP THRESHOLD, 6000 CYCLES AFTER REPAIR INSTALLATION. INSPECTION INTERNAL 1500 CYCLES.