Service difficulty report · Skin Panel · Boeing 7377H4

Difficulty date
July 24, 2024
Submitted
September 3, 2024
Operation
Air carrier
Aircraft
N487WN
Make and model
Boeing 7377H4
Aircraft serial
33854
Aircraft time
66,208 hours, 39,550 cycles
Part
Skin Panel
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 193.9 RIB AND 16 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 0.450 INCH. APPROX. 2024-454383<[01] ON STEP 6; TOOL USED P/N: NORTEC 500D; S/N: 500X1693P030457; CAL DUE: 15-OCT-24.;[02] PERFORMED PERMANENT REPAIR LOCATED AT STAB STA 193.9 RIB AND 16 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB IAW EA-24-155-02268 WIP1 AND EA- 24-155-02268-SUMMARY SEE INDIVIDUAL SIGN OFFS BELOW.;[03] TASK COMPLETED CERTIFIED RII<BR>PERFORMED PERMANENT REPAIR LOCATED AT STAB STA 193.9 RIB AND 16 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB IAW EA-24-155-02268 WIP1 AND EA- 24-155-02268-SUMMARY SEE INDIVIDUAL SIGN OFFS BELOW.

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