What was found
FRETTING CORROSION ON FLOORBEAM T-ANGLE AT BS 900 BETWEEN LBL 7 TO LBL 12. REVIEWED.
- Difficulty date
- January 8, 2026
- Submitted
- January 29, 2026
- Operation
- Air carrier
- Aircraft
- N411UP
- Make and model
- Boeing 75724APF
- Aircraft serial
- 23851
- Aircraft time
- 39,473 hours, 26,446 cycles
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- Part number
- 149N713067
- 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.