Service difficulty report · Floorbeam · Boeing 747481

Difficulty date
December 30, 2009
Submitted
March 31, 2010
Operation
Air carrier
Aircraft
N322SG
Make and model
Boeing 747481
Aircraft serial
30322
Aircraft time
29,526 hours, 4,639 cycles
Engine
Ge CF680C2B1F
Part
Floorbeam
Condition
Cracked
Location
Bs 380
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

M/DECK WEB CRACKED STA 380, RBL 80. M/D STA 380 RBL 80 FLOORBEAM CRACKED WEB TRIMMED OFF FROM RBL 77 TO RBL 88. HFEC INSPECTED, NO CRACK AFT TRIMMED OFF. FLOORBEAM WAS REPAIRED IAW SRM 53-00-51-2R-1 FIG 201 REPAIR 1. CATEGORY B. REF NON ROUTINE NR 50999.