Service difficulty report · Skin · Boeing 7377Q8

Difficulty date
March 4, 2023
Submitted
March 24, 2023
Operation
Air carrier
Aircraft
N7856A
Make and model
Boeing 7377Q8
Aircraft serial
30630
Aircraft time
59,993 hours, 39,891 cycles
Part
Skin
Condition
Cracked
Location
Zn 300 Stabilize
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 1.100 INCHES 2023-165218<[01] TOOL USED: CALIPER; PN: 500-752-20; SN: B20317422; DUE DATE: 29-AUG-23.;[02] TOOL USED EDDY CURRENT EQUIPMENT PN: NORTEC500D; SN: N500X12101V022233; DUE DATE: 30 AUG 23.;[03] TOOL USED: RADIUS GAUGE; PN: S167C; SN: AE-28457; DUE DATE: 14-SEP-23;[04] REPAIRED LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB IAW SRM B737-700 55-10-01-2R-11 REPAIR 11 PARAGRAPH 4. ITEM 0;P AND Q FIGURE 204; AND SRM B737-700 SRM 51-40-02.<BR>SEE INDIVIDUAL SIGNOFF BELOW;[05] TASK CARD COMPLETED <BR>RII

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