What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK IN PASSENGER CABIN FLOOR STRUCTURE INTERCOSTAL UPPER CHORD ANGLE BETWEEN STA 380 AND STA 400 AT BL 0. REPLACED ANGLE PER 51-00-05-1.
- Difficulty date
- May 17, 2026
- Submitted
- May 26, 2026
- Operation
- Air carrier
- Aircraft
- N801NN
- Make and model
- Boeing 737823
- Aircraft serial
- 29565
- Aircraft time
- 49,474 hours, 20,957 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Floor Support
- Part number
- 143A5410170
- 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.