Service difficulty report · Skin Panel · Boeing 7377H4

Difficulty date
July 24, 2022
Submitted
September 6, 2022
Operation
Air carrier
Aircraft
N493WN
Make and model
Boeing 7377H4
Aircraft serial
32477
Aircraft time
58,674 hours, 34,928 cycles
Part
Skin Panel
Condition
Cracked
Location
Rh Hor Stab
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 203.1 AND 23 INCH. FROM FRONT SPAR. CRACK LENGTH = 0.800 INCH. APPROX. 2022-409903 / [01] EDDY CURRENT EQUIPMENT USED P/N: NORTEC 600D; S/N: 190023010; DUE DATE: 14-FEB-23.;[02] ET TOOL USED: PN: MIZ-21C ; SN: 769680; DUE DATE: 07-JUL-23;[03] PERFORMED REPAIR ON HORIZONTAL STABILIZER LOWER SKIN PANEL LOCATED AT STAB STA 203.1 AND 23 INCH. FROM FRONT SPAR I.A.W. EA#22-155-02528-WIP1 AND EA#22-155-02528. SEE INDIVIDUAL SIGN-OFF BELOW;[04] CORRECTED STEP 3<BR>PERFORMED REPAIR ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL LOCATED AT STAB STA 203.1 AND 23 INCH. FROM FRONT SPAR I.A.W. EA#22-155-02528-WIP1 AND EA#22-155-02528. SEE INDIVIDUAL SIGN-OFF BELOW;[05] PERFORMED REPAIR ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL LOCATED AT STAB STA 203.1 AND 23 INCH. FROM FRONT SPAR I.A.W. EA#22-155-02528-WIP1 AND EA#22-155-02528. SEE INDIVIDUAL SIGN-OFF BELOW.<BR>CERTIFIED AS RII.

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