Service difficulty report · Skin · Boeing 7377H4

Difficulty date
August 1, 2024
Submitted
September 5, 2024
Operation
Air carrier
Aircraft
N494WN
Make and model
Boeing 7377H4
Aircraft serial
33868
Aircraft time
65,251 hours, 39,171 cycles
Part
Skin
Condition
Cracked
Location
Zone 300
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. 2024-473146<[01] ON STEP 6; EDDY CURRENT EQUIPMENT USED P/N: NORTEC 600D; S/N: 220272512; DUE DATE: 08-JAN-25.;[02] REPAIRED LOWER SKIN AT STAB STA 193.90 AT LT HORIZONTAL STABILIZER LOCATED 8 INCH. FROM REAR SPAR IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11; ELEVATOR POWER OFF FLIGHT TEST IS NOT NECESSARY DUE TO NOT EXCEED AERODYNAMIC LIMITS IAW B737-700 SRM 55-10-01-2R-11 PARAGRAPH 4.S. SEE INDIVIDUAL SIGN OFF BELOW;[03] TASK COMPLETED; RII <BR><BR>SEE INDIVIDUAL SIGNOFFS BELOW

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