What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSION ON PASSENGER CABIN FLOOR SUPPORT AT BS 990, FROM RBL 34 TO RBL 47. REPLACED FLOOR SUPPORT Z ANGLE PER AARD 51-00-05-1.
- Difficulty date
- September 24, 2025
- Submitted
- October 4, 2025
- Operation
- Air carrier
- Aircraft
- N939NN
- Make and model
- Boeing 737823
- Aircraft serial
- 33491
- Aircraft time
- 35,220 hours, 14,503 cycles
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- Part number
- 147A57102
- Condition
- Corroded
- Location
- Zone 200
- 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.