Service difficulty report · Skin · Boeing 7377BD

Difficulty date
November 29, 2023
Submitted
December 29, 2023
Operation
Air carrier
Aircraft
N7752B
Make and model
Boeing 7377BD
Aircraft serial
33943
Aircraft time
49,226 hours, 25,511 cycles
Part
Skin
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 LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.90 RIB AND 8 INCH. FROM REAR SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 1.00 INCH. APPROX. 2023-750170<[01] EQUIPMENT P/N PHASEC 3D; S/N 587435/07; DUE DATE: 15-FEB-24 WAS USED.;[02] TOOL USED EDDY CURRENT FLAW DETECTOR P/N:NORTEC 600D; S/N:210138103; DUE DATE:02-MAY-24.;[03] REPAIRED LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.90 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 AND EA 23-155-03621 WIP1 (TTG8Q00Q8JGE)<BR>EA 23-155-03621 WIP2 (TTG8Q00Q8SEE); EA 23-155-03621 (TTG8Q00QHPVE). SEE INDIVIDUAL SIGN OFF BELOW;[04] REPAIRED LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.90 IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 AND EA 23-155-03621 WIP1 (TTG8Q00Q8JGE)<BR>EA 23-155-03621 WIP2 (TTG8Q00Q8SEE); EA 23-155-03621 (TTG8Q00QHPVE). SEE INDIVIDUAL SIGN OFF BELOW<BR>RII

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