Service difficulty report · Rib · Boeing 7377H4

Difficulty date
April 30, 2025
Submitted
June 6, 2025
Operation
Air carrier
Aircraft
N222WN
Make and model
Boeing 7377H4
Aircraft serial
34290
Aircraft time
64,101 hours, 38,519 cycles
Part
Rib
Condition
Cracked
Location
Zone 300
Stage of operation
IN
How discovered
E
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 129.50 AT 8 INCHES FROM AFT EDGE AT LT HORIZONTAL STABILIZER 2025-291053 <[01] ON STEPS 4 AND 5; TOOL USED P/N: NORTEC 500D; S/N: N500X12101V022235; CAL DUE: 07-OCT-25.; [02] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 220272512; DUE DATE: 05-FEB-26.; [03] PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 129.50 AND 8 INCHES FROM AFT EDGE AT LT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4. SEE INDIVIDUAL SIGN OFFS BELOW.; [04] CERTIFICATED AS RII PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 129.50 AND 8 INCHES FROM AFT EDGE AT LT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4. SEE INDIVIDUAL SIGN OFFS BELOW.

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