Service difficulty report · Panel · Boeing 7377H4

Difficulty date
January 25, 2023
Submitted
March 6, 2023
Operation
Air carrier
Aircraft
N955WN
Make and model
Boeing 7377H4
Aircraft serial
36671
Aircraft time
38,739 hours, 23,607 cycles
Part
Panel
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

BS 540 CENTER PANEL BREAK IS CRACKED COMMON TO FWD HI-LOK AT LBL 1<[01] REMOVED AND REPLACED FLOOR BOARD CENTER PANEL BREAK AT BS540 LBL1; AND MATCHED DRILLED FLOOR BOARD HOLES IAW SRM 51-40-02 AND SRM 51-40-05;[02] CERTIFIED CORRECTIVE ACTION 1;[03] NO ALLOWABLE DAMAGE STATED IN THE SRM. PART REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 AND BOEING DWG 143A0060.;[04] CERTIFIED CORRECTIVE ACTION 3;[05] VERIFIED CORRECTIVE ACTION STEPS 1 AND 3.;[06] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

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