Service difficulty report · Rib · Boeing 7377H4

Difficulty date
November 20, 2021
Submitted
December 13, 2021
Operation
Air carrier
Aircraft
N231WN
Make and model
Boeing 7377H4
Aircraft serial
32499
Aircraft time
53,671 hours, 31,903 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CRACK INSPAR RIB 120.30 AT 36 INCHES OF FRONT SPAR AT RT HORIZONTAL STABILIZER ; 2021-526032 / [01] TOOL USED EDDY CURRENT FLAW DETECTOR P/N: NORTEC 600D; S/N: 210138203; DUE DATE: 05-MAR-22.; [02] TOOL USED EDDY CURRENT EQUIPMENT P/N: NORTEC 500D; S/N: N500X1693P030456; CAL DUE DATE: 30-NOV-21; [03] PERFORMED PERMANENT REPAIR ON INSPAR RIB 120.30 AT 36 INCHES FROM FRONT SPAR AT RT HORIZONTAL STABILIZERIAW B737-700 SRM 51-40-02 AND SRM 55-10-09-2R-4 REPAIR 4 FIGURE 202 SEE INDIVIDUAL SING OFFS BELLOW; [04] JOB COMPLETED AND CERTIFIED AS RII.

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