What was found
AFT FUSELAGE LAV VENT HAS AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION FOUND TO BE OUT OF LIMITS REPAIRED LAV VENT IAW SRM 53-20-01-2R-3W: 1" O: .125" R: .086" L: 2.5" D: .039".
- Difficulty date
- December 8, 2025
- Submitted
- January 3, 2026
- Operation
- Air carrier
- Aircraft
- N273AK
- Make and model
- Boeing 737990ER
- Aircraft serial
- 61554
- Aircraft time
- 29,646 hours, 9,589 cycles
- System (JASC)
- 5330 · Fuselage Main, Plate/Skin
- Part
- Skin
- Part number
- 147A311043
- Condition
- Corroded
- Location
- Zone 100
- 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.