Service difficulty report · Skin Panel · Boeing 7377BD

Difficulty date
February 6, 2025
Submitted
March 10, 2025
Operation
Air carrier
Aircraft
N7745A
Make and model
Boeing 7377BD
Aircraft serial
33933
Aircraft time
56,037 hours, 29,185 cycles
Part
Skin Panel
Condition
Cracked
Location
Zone 300
Stage of operation
IN
How discovered
E
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 8.0 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 0.75 INCH. APPROX. 2025-110690 <[01]. TOOL USED: EDDY CURRENT EQUIPMENT P/N NORTEC 600D S/N 210136503 DUE DATE: 24-JUL-25.;[02] TOOL USED ON STEP 6 UT EQUIPMENT. P/N: 45MG; S/N: 232017609; CAL DUE DATE: 08-OCT-25; [03] REPAIRED RT HORIZONTAL STABILIZER LOWER SKIN PANEL LOCATED AT STAB STA 193.9 RIB AND 8.0 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB I.A.W B737-700 SRM 55-10-01-2R-11 REPAIR 11. SEE INDIVIDUAL SIGN OFF BELOW.; [04] CERTIFIED CORRECTIVE ACTION 3; COMPLETED RII.

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