What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK IN PASSENGER CABIN FLOOR STRUCTURE INTERCOSTAL FROM BS 277 TO BS 294.5, AT S17R AND RBL 25. REPLACED INTERCOSTAL PER AARD 51-00-05-1.
- Difficulty date
- December 30, 2025
- Submitted
- January 5, 2026
- Operation
- Air carrier
- Aircraft
- N948NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31189
- Aircraft time
- 34,302 hours, 114,200 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Intercostal
- Part number
- 141A5410U3
- Condition
- Cracked
- 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.