Service difficulty report · Skin · Boeing 73779P

Difficulty date
December 15, 2024
Submitted
January 21, 2025
Operation
Air carrier
Aircraft
N7855A
Make and model
Boeing 73779P
Aircraft serial
29357
Aircraft time
58,889 hours, 38,172 cycles
Part
Skin
Condition
Debonded
Location
Zone 500
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

CUSTOMER REQUEST - DEBONDED EXTERNAL SKIN OB AFT FLAP IB LOWER CORNER AT LT WING 2024-766038<[01] TOOL USED CALIPER: PN: 500-196-30; SN: A23325649; DUE DATE: 31-DEC-24;[02] TOOL USED: BOND TESTING UNIT; P N: BONDMASTER 600M; S N: 230106912; CAL DUE DATE: 09-JAN-25;[03] TOOL USED HOT BONDER P/N HCS9200B-AV S/N 18185733 DUE DATE 25/JAN/25; POSITECTOR P/N POSITECTOR 6000 NS3 S/N 767584 DUE DATE 30/AUG/25.;[04] ON STEP 19. TOOL USED: UT INSTRUMENT. P/N: BONDMASTER 600M. S/N: 230106912. DUE DATE: 09-JAN-25.;[05] PERFORMED INTERIM REPAIR AT OB AFT FLAP INB CORNER UPPER AND LOWER SURFACE AT LT WING IAW B737-700 SRM 57-53-01-2R-16 REPAIR 16. AND THE REPAIR REQUIRED TAP TEST INSPECTION EVERY 6;875 CYCLES OR 30<BR>MONTHS; WHICHEVER COMES FIRST. SEE INDIVIDUAL SIGNOFF BELOW.;[06] PERFORMED INTERIM REPAIR AT OB AFT FLAP INB CORNER UPPER AND LOWER SURFACE AT LT WING IAW B737-700 SRM 57-53-01-2R-16 REPAIR 16. AND THE REPAIR REQUIRED TAP TEST INSPECTION EVERY 6;875 CYCLES OR 30<BR>MONTHS; WHICHEVER COMES FIRST. SEE INDIVIDUAL SIGNOFF BELOW.

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