What was found
BS 540, UPPER DECK FLOORBEAM, UPPER FORWARD SIDE OF CHORD LBL3 THRU LBL6 HAS EXFOLIATING CORROSION. REMOVED, FABRICATED, AND INSTALLED REPLACEMENT CHORD PER B747 SRM 53-30-03, FIGURE 1, ALONG WITH MM 51-30-05 AND 51-20-02.
- Difficulty date
- October 20, 2004
- Submitted
- November 16, 2004
- Operation
- Air carrier
- Aircraft
- N470EV
- Make and model
- Boeing 747273C
- Aircraft serial
- 20653
- Aircraft time
- 89,121 hours, 19,948 cycles
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- Condition
- Corroded
- Location
- Fuselage
- 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.