- Difficulty date
- February 14, 2021
- Submitted
- March 17, 2021
- Operation
- Air carrier
- Make and model
- Boeing 7377H4
- Aircraft serial
- 36644
- Aircraft time
- 39,004 hours, 23,596 cycles
- Part
- Stiffener
- Condition
- Cracked
- Location
- Fuselage
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACK STIFFENER FLOOR STRUCTURE BS 540 BETWEEN RBBL 24.5 AND LBBL 24.5 AT PASSENGER CABIN (2 EA) / REPLACED STIFFENERS (2EA) FLOOR STRUCTURE BS 540 BTW RBBL 24.5 AND LBBL 24.5 AT PASSENGER CABIN IAW B737-700 SRM 51-10-02 ITEM #9 51-40-02 AND IPC 53-42-11-66 PN USED 143A5240-35 PO 2021-114572 PN 143A5240-36 PO 2021-119571