Service difficulty report · Rib · Boeing 7377H4

Difficulty date
November 15, 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
L/H Horiz. 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 INDICATIONS FOUND ON LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB; 16.750 INCH FROM FRON SPAR; INBD SIDE OF RIB. CRACK LENGTH IS 0.800 INCH ; 2021-525783 / [01] TOOL USED EDDY CURRENT FLAW DETECTOR P/N: NORTEC 600D; S/N: 210138203; DUE DATE: 05-MAR-22.; [02] REPAIRED LOWER INSPAR SKIN LH HORIZONTAL STABILIZER AT STATION 193.90 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11. SEE INDIVIDUAL SIGNOFFS BELOW.; [03] TASK COMPLETED; RII.<BR><BR>SEE INDIVIDUAL SIGN OFFS BELOW

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