Service difficulty report · Rib · Boeing 7377H4

Difficulty date
May 29, 2022
Submitted
June 16, 2022
Operation
Air carrier
Aircraft
N251WN
Make and model
Boeing 7377H4
Aircraft serial
32510
Aircraft time
53,224 hours, 31,891 cycles
Part
Rib
Condition
Cracked
Location
Vertical Stab
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 DORSAL FIN RIB #8 AT VERTICAL STABILIZER 2022-291513 / [01] REPLACED RIB 8 ON DORSAL FIN AT VERTICAL STABILIZER IAW B737-700 SRM 51-40-02 AND DRAWING 174A0103 REV -: AND MEASURES OF CRACK IS L: 0.260 INCH TOOK MECHANICALLY TOOL USED CALIPER P/N: 500-197-30 S/N: A21043164 DUE DATE: 01-SEP-22.;[02] REPLACED RIB 8 ON DORSAL FIN AT VERTICAL STABILIZER IAW B737-700 SRM 51-40-02 AND DRAWING 174A0103 REV -: AND MEASURES OF CRACK IS L: 0.260 INCH TOOK MECHANICALLY TOOL USED CALIPER P/N: 500-197-30 S/N: A21043164 DUE DATE: 01-SEP-22.

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