- Difficulty date
- July 14, 2023
- Submitted
- August 7, 2023
- Operation
- Air carrier
- Aircraft
- N415WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29836
- Aircraft time
- 71,392 hours, 42,326 cycles
- Part
- Angle
- Part number
- UNKNOWN
- 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
B.S. 663 LOWER COMPOSITE BULKHEAD UPPER ATTACH ANGLE IS CRACKED AT L.B.L. 10; W.L. 164.<[01] REMOVED BS663 UPPER ATTACH ANGLE IAW SRM 51-40-02;[02] UPDATE STEPS 2 AND 3.;[03] COMPLETED STEPS 1 AND 3.... OK TO INTALL LH BS 663 UPPER ATTACH ANGLE;[04] VERIFIED STEPS 1;2;3; IN PARTIAL OK TO INSTALL GIVEN.;[05] VERIFIED STEPS 1;3 COMPLETE.;[06] UPDATE STEP 4.;[07] VERIFY JOB COMPLETED;[08] VERIFIED COMPLETE AND MEASUREMENT TABLE