What was found
MID CABIN FLOOR EXPANSION JOINT AT BS 540 CRACKED AT FASTENER LOCATION NEAR RBL 1. REMOVED AND REPLACED THE FLOORBEAM ASSY IAW SRM 51-40-02-0G-0, 51-40-05-0G-0, AND DWG 143A0060, SHEET 64, REV- APPLIED CIC IAW AMM 51-21-91-620-802.
- Difficulty date
- November 7, 2025
- Submitted
- November 20, 2025
- Operation
- Air carrier
- Aircraft
- N8520Q
- Make and model
- Boeing 7378H4
- Aircraft serial
- 42532
- Aircraft time
- 29,313 hours, 14,692 cycles
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- Condition
- Cracked
- 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.