What was found
STR Z100 FAULT: FRETTING CORROSION ON T-ANGLE AT STA 1037, LBL 5 TO LBL 15 INSTALLED T-CHORD. IAW B757-200 SRM 51-40-02.
- 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
- 149N7517
- 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.