Service difficulty report · Skin · Boeing 7377H4

Difficulty date
May 28, 2022
Submitted
July 1, 2022
Operation
Air carrier
Aircraft
N480WN
Make and model
Boeing 7377H4
Aircraft serial
33998
Aircraft time
60,471 hours, 35,653 cycles
Part
Skin
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 INDICATION FOUND ON LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB; 17.500 INCH FROM FRONT SPAR; INBD SIDE OF RIB. CRACK LENGTH IS 0.750 INCH 2022-287600 / [01] TOOL USED : EDDY CURRENT TOOL; P/N: NORTEC 500D; S/N: N500X1693P030456; DUE DATE: 26 JAN 23.;[02] TOOL USED EDDY CURRENT EQUIPMENT PN: NORTEC500D; SN: N500X1693P030456 DUE DATE: 26 JAN 23.;[03] PERFORMED REPAIR ON LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB; 17.500 INCH FROM FRONT SPAR IAW SRM B737-700 55-10-01-2R-11 REPAIR 11. SEE INDIVIDUAL SING-OFF BELOW;[04] PERFORMED REPAIR ON LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB; 17.500 INCH FROM FRONT SPAR IAW SRM B737-700 55-10-01-2R-11 REPAIR 11. SEE INDIVIDUAL SING-OFF BELOW AS RII

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