- Difficulty date
- May 16, 2023
- Submitted
- June 14, 2023
- Operation
- Air carrier
- Make and model
- Boeing 7377H4
- Aircraft serial
- 36611
- Aircraft time
- 51,345 hours, 30,884 cycles
- Part
- Stiffener
- Condition
- Cracked
- Location
- Zn 100 Fus Lower
- 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 INDICATION OBTAINED FROM FASTENER HOLE ON VAPOR BARRIER STIFFENER AT LBL 51<[01] REAMED FASTENER HOLE ON VAPOR BARRIER STIFFENER AT LBL 51 TO 2ND OVERSIZE AS PER B737-700 SRM 51-40-02-0G-0 STEP 4 D.;[02] VOID STEP #1;[03] ACCOMPLISHED EA: 23-157-01649/8818001.;[04] VERIFIED STEP 3