Service difficulty report · Stringer · Boeing 7377CT

Difficulty date
January 9, 2023
Submitted
February 14, 2023
Operation
Air carrier
Aircraft
N7825A
Make and model
Boeing 7377CT
Aircraft serial
32750
Aircraft time
65,629 hours, 33,836 cycles
Part
Stringer
Condition
Cracked
Location
Zn 100 Fus Lower
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 23R BS 540 FWD CARGO COMPARTMENT 2023-37865<[01] EQUIPMENT P/N 45MG; S/N 130066701; DUE DATE 08-APR-23 WAS USED.;[02] TOOLS USED: TEMPERATURE CONTROLLER: P/N: P3015GOES00000; S/N: 112031023; DUE DATE: 01-FEB-23; TEMPERATURE CONTROLLER: P/N: P3015GOES00000; S/N: 112820025; DUE DATE: 01-FEB-23.;[03] PERFORMED PERMANENT REPAIR ON STRINGER 23R AT BS 500D + 11?; TO BS 540 AND FASTENERS. IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1; FIG 206 SEE INDIVIDUAL SIGNOFFS BELOW.;[04] PERFORMED PERMANENT REPAIR ON STRINGER 23R AT BS 500D + 11?; TO BS 540 AND FASTENERS. IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1; FIG 206 SEE INDIVIDUAL SIGNOFFS BELOW.AS RII.

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