- Difficulty date
- August 9, 2023
- Submitted
- August 24, 2023
- Operation
- Air carrier
- Aircraft
- N420WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29825
- Aircraft time
- 72,005 hours, 42,658 cycles
- Part
- Panel
- 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
AREA ABOVE WING BOX CENTER SECTION HAS A CRACKED BREAK PANEL I/B OF FASTENER; BS 540; LBL 1; WL 207<[01] COMPLETED STEPS 1 AND 2; PARTIAL UPDATED STEP 3. UPDATED MEASURENMENT TABLE.;[02] COMPLETED STEP 3.;[03] REPLACED PANEL BREAK AT BS 540 LBL 1 PER SRM 51-40-05; 51-40-02; AND DWG #143A5240. FAULT COMPLETE;[04] UPDATED PARTS AND REFERENCE. FAULT COMPLETE;[05] VERIFIED MEASUREMENT TABLE.<BR>VERIFIED CORRECTIVE ACTIONS 1-4 COMPLETE. CARD COMPLETE.