Service difficulty report · Skin · Boeing 7377H4

Difficulty date
April 5, 2025
Submitted
May 6, 2025
Operation
Air carrier
Aircraft
N941WN
Make and model
Boeing 7377H4
Aircraft serial
36647
Aircraft time
50,295 hours, 30,868 cycles
Part
Skin
Condition
Debonded
Location
Zone 600 Flap
Stage of operation
IN
How discovered
V
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

DEBONDED EXTERNAL SKIN OB AFT FLAP IB EDGE AT RT WING. 2025-243970<[01] TOOL USED CALIPER PN: 500-197-30; SN: B20189334; DUE DATE: 26/JAN/26.;[02] TOOL USED STEP 3: ULTRASONIC EQUIPMENT; P/N: BONDMASTER 600M; S/N: 230106912; DUE DATE: 05 FEB 2026.;[03] TOOL USED POSITECTOR PN: NS2; SN: 110098; DUE DATE: 05/SEP/25. <BR>TOOL USED: HOT BONDER PN: HCS9200B; SN: 8185847; DUE DATE: 01/OCT/25;[04] TOOL USED; HOT BONDER PN: HCS9000B-AV; SN: 18247194; DUE DATE: 08-OCT-25.;[05] EQUIPMENT P/N BONDMASTER 600M; S/N 230106912; DUE DATE 05-FEB-2025 WAS USED ON STEP 19;[06] REPAIRED EXTERNAL SKIN OB AFT FLAP IB EDGE AT RT WING. IAW B737-700 SRM 57-53-01-2R-16 REPAIR 16. SEE INDIVIDUAL SIGNOFFS BELOW.;[07] EQUIPMENT P/N BONDMASTER 600M; S/N 230106912; DUE DATE 05-FEB-2026 WAS USED ON STEP 19;[08] EQUIPMENT P/N BONDMASTER 600M; S/N 230106912; DUE DATE 05-FEB-26 WAS USED ON STEP 19;[09] REPAIRED EXTERNAL SKIN OB AFT FLAP IB EDGE AT RT WING. IAW B737-700 SRM 57-53-01-2R-16 REPAIR 16. SEE INDIVIDUAL SIGNOFFS BELOW. TASK COMPLETED;[10] RII COMPLETED

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