Service difficulty report · Rib · Boeing 7377H4

Difficulty date
May 28, 2021
Submitted
June 28, 2021
Operation
Air carrier
Aircraft
N223WN
Make and model
Boeing 7377H4
Aircraft serial
32492
Aircraft time
53,092 hours, 31,519 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
Stage of operation
IN
How discovered
V
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 120.30 AT 19 INCHES OF FRONT SPAR LT HORIZONTAL STAB ; 2021-252415 / [01] TOOL USED: CALIPER P/N 500-752-10; S/N 15183542; DUE DATE 04-OCT-21; [02] TOOLS USED: CALIPER P/N 500-752-10; S/N 15183542; DUE DATE 04-OCT-21; RADIUS GAUGE P/N S167C; S/N AE-27308; DUE DATE 20-AUG-21; [03] TOOL USED: P/N: NORTEC 600D; S/N: 60009161631; DUE DATE: 01-DEC-21.; [04] TOOL USED: P/N: NORTEC 600D; S/N: 60009161631; DUE DATE: 01-DEC-21.; [05] TOOLS USED: CALIPER P/N 500-752-10; S/N 15183542; DUE DATE 04-OCT-21; RADIUS GAUGE P/N S167C; S/N AE-27308; DUE DATE 20-AUG-21; [06] PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 120.30 AT 19 INCHES OF FRONT SPAR LT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4 FIGURE 202; [07] PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 120.30 AT 19 INCHES OF FRONT SPAR LT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4 FIGURE 202 MATERIAL USED: KIT P/N SWA 55100003-01; BATCH SWA 2021000734.; [08] PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 120.30 AT 19 INCHES OF FRONT SPAR LT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4 FIGURE 202 MATERIAL USED: KIT P/N SWA 55100003-01; BATCH SWA 2021000734. CERTIFIED AS RII

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