What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK IN PASSENGER CABIN FLOOR STRUCTURE INTERCOSTAL UPPER ANGLE AT BS 400 MINUS 6 INCHES, AT RBL 9.5. REPLACED INTERCOSTAL ANGLE PER AARD 51-00-05-1.
- Difficulty date
- January 4, 2026
- Submitted
- January 8, 2026
- Operation
- Air carrier
- Aircraft
- N949NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31192
- Aircraft time
- 34,250 hours, 14,213 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Angle
- Part number
- 143A5410170
- 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.