What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK IN MAIN CABIN FLOOR BREAK ASSEMBLY AT STA 540 BETWEEN LBL 24 AND RBL 24, MEASURING L=1.0 IN. REPLACED BREAK ASSEMBLY WITH NEW IAW B737-NG SRM 51-40-02-OG AND 51-40-05-OG.
- Difficulty date
- October 15, 2021
- Submitted
- October 20, 2021
- Operation
- Air carrier
- Aircraft
- N979NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31228
- Aircraft time
- 17,881 hours, 7,307 cycles
- System (JASC)
- 5310 · Fuselage Main, Structure
- Part
- None
- Part number
- 143A524035
- Condition
- Cracked
- Location
- Zone 100 - Fuse
- 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.