What was found
AFT CARGO DOOR WEB SILL HAS CORROSION IN MULTIPLE SPOTS (MARKED). GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS, REMOVED AND REPLACED IAW B737-900ER SRM 51-40-02-0G & 51-40-05-0GW: 1" O: 0.050" R: 0.041" L: 2 D: 0.009".
- Difficulty date
- December 6, 2025
- Submitted
- January 6, 2026
- Operation
- Air carrier
- Aircraft
- N273AK
- Make and model
- Boeing 737990ER
- Aircraft serial
- 61554
- Aircraft time
- 29,646 hours, 9,589 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Web
- Part number
- 146A812325
- 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.