Service difficulty report · Flap · Boeing 7378H4

Difficulty date
August 27, 2023
Submitted
October 12, 2023
Operation
Air carrier
Aircraft
N8311Q
Make and model
Boeing 7378H4
Aircraft serial
38808
Aircraft time
37,275 hours, 17,282 cycles
Part
Flap
Part number
UNKNOWN
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 OB AFT FLAP LOWER SURFACE ON IB SIDE AT LT WING 2023-549714<[01] TOOL USED; CALIPER PN:500-464 ; S/N:B17030933; DUE DATE: 17/OCT/23.;[02] TOOL USED CALIPER PN: 500-197-30; SN: 15120589; DUE DATE: 13/FEB/24.;[03] TOOL USED ULTRASONIC EQUIPMENT P/N: USM/DMSGO ; S/N: USMGO11040089; DUE DATE: 06-FEB-24.;[04] TOOL USED:HOT BONDER PN:HCS9200B-AV; SN:18175478 DUE DATE 24/SEP/23;[05] TOOL USED:POSITECTOR PN:NS2 ; SN:138341 DUE DATE 25/JUL/24.;[06] CALIPER PN: 500-197-30; SN: 15120589; DUE DATE: 13/FEB/24;[07] TOOL USED: AUDIBLE BOND TESTER; P/N: S-3; S/N: 064; DUE DATE: 11-AUG-24.;[08] TOOL USED SCALE PN: SPX621; SN: 8340225469; DUE DATE: 20/JUL/24;[09] PERFORMED PERMANENT REPAIR ON O/B AFT FLAP LOWER SURFACE ON IB SIDE AT LT WING IAW B737-700 SRM 57-53-01-2R-16 REPAIR 16. SEE INDIVIDUAL SIGNOFFS BELOW.;[10] JOB COMPLETED.

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