What was found
AIRCRAFT WAS GROUNDED: EXFOLIATION CORROSION ON FLOOR BEAM AT LH OB AFT LAV MOUNT STA 947, LBL 49. MAINTENANCE REPLACED FLOOR BEAM UPPER T-CAP IAW SRM 53-70-51-2R, REPAIR 5 ALT 1.
- Difficulty date
- September 24, 2026
- Submitted
- October 21, 2026
- Operation
- Air carrier
- Aircraft
- N959NN
- Make and model
- Boeing 737823
- Aircraft serial
- 33329
- Aircraft time
- 35,773 hours, 14,920 cycles
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- 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.