Service difficulty report · Rib · Boeing 7377H4

Difficulty date
January 19, 2024
Submitted
February 12, 2024
Operation
Air carrier
Aircraft
N425LV
Make and model
Boeing 7377H4
Aircraft serial
29829
Aircraft time
71,691 hours, 42,577 cycles
Part
Rib
Part number
UNKNOWN
Condition
Cracked
Location
Horizontal 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 INSPAR RIB LOCATED STAB STA 129.50 AND 28 INCH FROM FRONT SPAR LT HORIZONTAL STAB 2024-67217<[01] TOOL USED EDDY CURRENT EQUIPMENT PN: NORTEC500D; SN: N500X11290U021704; DUE DATE: 12 MAR 24;[02] DIGITAL CALIPER PN: 500-197-30; SN: A18234369; DUE DATE: 03 NOV 24.;[03] TOOL USED EDDY CURRENT EQUIPMENT P/N NORTEC 600D; S/N 60009161631 DUE DATE 31/JAN/24;[04] PERFORMED REPAIR CATEGORY A ON INSPAR RIB LOCATED STAB STA 129.50 AND 28 INCH FROM FRONT SPAR LT HORIZONTAL STAB IAW B737-700 55-10-09-2R-4 REPAIR 4.SEE INDIVIDUAL SIGN OFFS BELOW.;[05] CORRECTED STEP 4<BR>PERFORMED REPAIR CATEGORY A ON INSPAR RIB LOCATED STAB STA 129.50 AND 28 INCH FROM FRONT SPAR LT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4.SEE INDIVIDUAL SIGN OFFS BELOW.;[06] PERFORMED REPAIR CATEGORY A ON INSPAR RIB LOCATED STAB STA 129.50 AND 28 INCH FROM FRONT SPAR LT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4.SEE INDIVIDUAL SIGN OFFS BELOW. RII ITEM

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