Service difficulty report · Flap · Boeing 7377H4

Difficulty date
October 7, 2024
Submitted
November 14, 2024
Operation
Air carrier
Aircraft
N273WN
Make and model
Boeing 7377H4
Aircraft serial
32528
Aircraft time
58,079 hours, 34,971 cycles
Part
Flap
Condition
Debonded
Location
Zn 500 Left Wing
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

CUSTOMER REQUEST - DEBONDED EXTERNAL SKIN IB MAIN FLAP TRAILING EDGE WEDGE LOWER SURFACE AT LT WING 2024-634150<[01] TOOL USED; CALIPER PN: 8647A42; SN: A22356048; DUE DATE: 25-JUL-25.;[02] TOOL USED: HOT BONDER P/N: HCS9200B-AV; S/N: 18185781; DUE DATE: 15-FEB-25; POSITECTOR P/N: NS2; S/N: 110098; DUE DATE: 05-SEP-25.;[03] TOOL USED: BOND TESTING UNIT; P/N: BONDMASTER600M; S/N: 220052310; CAL DUE DATE: 17-NOV-24;[04] TOOL USED SCALE P/N: SPX621; S/N: 8340225453; DUE DATE: 01-SEP-25.;[05] PERFORMED INTERIM REPAIR ON IB MAIN FLAP TRAILING EDGE WEDGE AT LT WING IAW B737-700 SRM 57-53-01-2R-18 REPAIR 18. SEE INDIVIDUAL SIGNOFFS BELOW.;[06] PERFORMED INTERIM REPAIR ON IB MAIN FLAP TRAILING EDGE WEDGE AT LT WING IAW B737-700 SRM 57-53-01-2R-18 REPAIR 18. SEE INDIVIDUAL SIGNOFFS BELOW. RII COMPLETED.

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