Service difficulty report · Rib · Boeing 7377H4

Difficulty date
November 23, 2022
Submitted
January 9, 2023
Operation
Air carrier
Aircraft
N439WN
Make and model
Boeing 7377H4
Aircraft serial
29834
Aircraft time
64,965 hours, 38,601 cycles
Part
Rib
Condition
Cracked
Location
Zone 300
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 INSPAR RIB STAB STA 129.50 AT 26 INCH FROM FRONT SPAR LT HORIZONTAL STAB 2022-664033<[01] TOOL USED PN: NORTEC 600D; SN: 210138503; CAL DUE DATE: 11-APR-23;[02] PERFORMED PERMANENT REPAIR ON INSPAR RIB STA 129.50 AT 26 INCH FROM FRONT SPAR LT HORIZONTAL STAB I.A.W.B737-700 SRM 51-40-02 AND SRM 55-10-09-2R-4 FIGURE 202 SHEET 1. SEE INDIVIDUAL STEP SIGN OFFS BELOW;[03] TASK COMPLETED; RII <BR><BR>SEE INDIVIDUAL SIGN OFFS BELOW

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