- Difficulty date
- March 24, 2021
- Submitted
- May 3, 2021
- Operation
- Air carrier
- Aircraft
- N408WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 27895
- Aircraft time
- 66,599 hours, 39,435 cycles
- Part
- Stringer
- Condition
- Cracked
- Location
- Bs 540 S23r
- 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 STRINGER 23R LOCATED BS 540 FWD CARGO COMPARTMENT / REPAIRED STRINGER 23R LOCATED BETWEEN BS500D TO BS540 AT FWD CARGO COMPARTMENT IAW SRM B737-700 53-00-03-2R-1 REPAIR 1 MATERIAL USED ALUMINUM SHEET 7075-T0 0.040' ANGLE (2E/A) AND CHANNEL 7075-T0 0.045' STRINGER SECTION HEAT TREATED APPLIED 7075-T6 IAW BAC 5602 PO 2021-109926 AND 2021-113097