Service difficulty report · Skin Panel · Boeing 7377BD

Difficulty date
September 7, 2023
Submitted
October 6, 2023
Operation
Air carrier
Aircraft
N7751A
Make and model
Boeing 7377BD
Aircraft serial
36717
Aircraft time
49,352 hours, 25,598 cycles
Part
Skin Panel
Part number
UNKNOWN
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 RT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 RIB AND 16 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 1.000 INCH. APPROX. 2023-575222<[01] TOOL USED EDDY CURRENT EQUIPMENT P/N: NORTEC 500D; S/N: 00X12101V022237; CAL DUE DATE: 26-JAN-24;[02] REPAIRED HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 IAW B737-700 55-10-01-2R-11 REPAIR 11 FIG 204 SHEET 2; TABLE 201;[03] REPAIRED HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 FIG 204 SHEET 2; TABLE 201;[04] CORRECTED STEP 2 AND 3 <BR>REPAIRED HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 FIG 204 SHEET 2; TABLE 201 <BR>SEE INDIVIDUAL SIGNOFF BELOW;[05] CERTIFIED STEP 4 COMPLETED <BR>RII

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