What was found
STA 947 FLOOR BEAM HAS MULTIPLE AREAS OF CORROSION BETWEEN LBL-26 TO RBL-26. GROUNDED - YES. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS, REPAIRED IAW B737-900 SRM 53-70-51-2R-5W: 1" O: .150 R: 0 L: 1" D: .150.
- Difficulty date
- August 20, 2025
- Submitted
- September 10, 2025
- Operation
- Air carrier
- Aircraft
- N462AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36362
- Aircraft time
- 42,027 hours, 13,087 cycles
- System (JASC)
- 5315 · Fuselage Main, Floor Beam
- Part
- Floorbeam
- Part number
- 147A550423
- 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.