What was found
AIRCRAFT IN BASE MAINTENANCE: 1.25 INCH LONG CRACK FOUND ON WEB BETWEEN LBL 31.83 AND LBL 40 ON LEFT SIDE OF WING CENTER SECTION KEEL BEAM. INSTALLED DOUBLER REPAIR PER B737NG SRM 57-10-10-2R REPAIR 4.
- Difficulty date
- May 1, 2021
- Submitted
- May 4, 2021
- Operation
- Air carrier
- Aircraft
- N839NN
- Make and model
- Boeing 737823
- Aircraft serial
- 29557
- Aircraft time
- 32,461 hours, 13,320 cycles
- System (JASC)
- 5312 · Fuselage Main, Bulkhead
- Part
- Bulkhead Web
- Condition
- Cracked
- Location
- Bs 663
- Stage of operation
- IN
- How discovered
- E
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.