Service difficulty report · None · Boeing 7377H4

Difficulty date
August 2, 2022
Submitted
August 31, 2022
Operation
Air carrier
Aircraft
N497WN
Make and model
Boeing 7377H4
Aircraft serial
32479
Aircraft time
59,605 hours, 35,281 cycles
Part
None
Condition
Cracked
Location
R/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 RH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 203.10 RIB; 23 INCH FROM FRONT SPAR; INBD SIDE OF RIB. CRACK LENGTH IS 0.600 INCH 2022-418389 / [01] EDDY CURRENT EQUIPMENT USED; PN: NORTEC 600D ; SN: 190023010 ; DUE DATE: 14-FEB-23.;[02] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600D; S/N: 210136503 DUE DATE: 11-APR-23;[03] PERFORMED REAPAIR AT RH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 203.10 RIB; 23 INCH FROM FRONT SPAR; INBD SIDE OF RIB IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11;[04] CORRECTED STEP 3<BR>PERFORMED REAPAIR AT RH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 203.10 RIB; 23 INCH FROM FRONT SPAR; INBD SIDE OF RIB IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11. SEE INDIVIDUAL SIGN-OFF BELOW;[05] PERFORMED REAPAIR AT RH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 203.10 RIB; 23 INCH FROM FRONT SPAR; INBD SIDE OF RIB IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11. SEE INDIVIDUAL SIGN-OFF BELOW AS RII

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