What was found
B737-MP-2000-53-380-00 MAIN CABIN FLOOR SUPPORT BETWEEN BS 277 & 294.5 WAS CRACKED ON FLOORBOARD UPPER ATTACH FLANGE AT APPROX RBL 1. REPLACED FLOOR SUPPORT, BS 277 - 294.5 RBL 1 IAW DWG 141A540 REV-, SRM 51-40-05, SRM 51-40-02.
- Difficulty date
- January 29, 2026
- Submitted
- February 2, 2026
- Operation
- Air carrier
- Aircraft
- N37437
- Make and model
- Boeing 737924ER
- Aircraft serial
- 33532
- Aircraft time
- 51,947 hours, 18,550 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Floor Support
- Part number
- 141A5410U139
- Condition
- Cracked
- 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.