Service difficulty report · Stringer · Boeing 73779P

Difficulty date
February 1, 2025
Submitted
March 4, 2025
Operation
Air carrier
Aircraft
N7857B
Make and model
Boeing 73779P
Aircraft serial
29358
Aircraft time
59,090 hours, 39,530 cycles
Part
Stringer
Condition
Cracked
Location
Zone 100
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

CRACK STRINGER 26L LOCATED BS540 AT FWD CARGO COMPARTMENT 2025-93339<[01] STEP 2. ULTRASONIC EQUIPMENT USED P/N: 45MG; S/N: 130066401 AND DUE DATE: 21-OCT-25.;[02] TOOL USED STEP 6: EDDY CURRENT EQUIPMENT; P/N: NORTEC 600D; S/N: 200048001; DUE DATE: 28 MAY 25.;[03] TOOLS USED: TEMPERATURE CONTROLLER: P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 28-JAN-26. TEMPERATURE CONTROLLER: P/N: P3015GOES00000 S/N: 142811019 DUE DATE: 28-JAN-26.;[04] PERFORMED PERMANENT REPAIR STRINGER 26L LOCATED BS500D TO BS 540 AT FWD CARGO COMPARTMENT I.A.W B737-700 SRM 53-00-03-2R-1 REPAIR 1. SEE INDIVIDUAL SIGN OFF BELOW;[05] TASK CARD COMPLETE AND CERTIFIED AS RII. <BR><BR><BR>SEE INDIVIDUAL SIGN OFF BELOW.

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