What was found
CORROSION ON UPPER SURFACE OF FLOORBEAM UPPER CHORD AT BSTA 1720 RBL 71.5-RBL 90. REPAIRED THE FLOORBEAM UPPER CHORD PER SRM 53-60-51 RI REV 79.
- Difficulty date
- April 23, 2011
- Submitted
- May 17, 2011
- Operation
- Air carrier
- Aircraft
- N673US
- Make and model
- Boeing 747451
- Aircraft serial
- 30268
- Aircraft time
- 51,270 hours, 6,487 cycles
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- Condition
- Corroded
- Location
- Bs 1720
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.