What was found
MAIN DECK STA 520 RBL 41.5 FLOOR BEAM UPPER CHORD CORROSION. MAJOR REPAIR ACCOMPLISHED: CUT UPPER CHORD AND REMOVED STIFFENERS. FABRICATED AND INSTALLED REPAIR PARTS.
- Difficulty date
- August 9, 2009
- Submitted
- August 13, 2009
- Operation
- Air carrier
- Aircraft
- N177UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24384
- Aircraft time
- 79,596 hours, 9,804 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- Condition
- Corroded
- Location
- Bs 520 Rbl 41.5
- 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.