- Difficulty date
- November 25, 2020
- Submitted
- November 25, 2020
- Operation
- Air carrier
- Make and model
- Boeing 757222
- Aircraft serial
- 25253
- Aircraft time
- 76,969 hours, 30,018 cycles
- Part
- Floorbeam
- Condition
- Corroded
- Location
- Cabin
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR BEAM LOWER SURFACE IS CORRODED UNDER NUT PLATE AT PRESSURE DECK THRU AFT PIT BULKHEAD PANEL BS 1681-RBL 36. REPLACED NUTPLATE STRIP AS REQUIRED, IAW BOEING DRAWINGS 146N5693 REV "B", 146N5300 "F", AND B757 SRM 51-40-02.