Service difficulty report · Panel · Boeing 7377H4

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; RBL 1; WL 207<[01] UPDATED MEASUREMENT TABLE.;[02] COMPLETED STEPS 1 AND 2. PARTIAL UPDATED STEP 3.;[03] CONMPLETED STEP 3.;[04] REPLACED PANEL BREAK AT BS 540 RBL 1 PER SRM 51-40-02; 51-40-05; AND DWG #143A5240. FAULT COMPLETE.;[05] UPDATED PARTS AND REFERENCE. FAULT COMPLETE.;[06] VERIFIED MEASUREMENT TABLE.<BR>VERIFIED CORRECTIVE ACTIONS 1-5 COMPLETE. CARD COMPLETE.

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