Service difficulty report · Rib · Boeing 7377H4

Difficulty date
August 13, 2023
Submitted
September 5, 2023
Operation
Air carrier
Aircraft
N449WN
Make and model
Boeing 7377H4
Aircraft serial
32469
Aircraft time
65,862 hours, 39,346 cycles
Part
Rib
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
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 120.30 AND 18 INCHES FROM FRONT EDGE AT LT HORIZONTAL STABILIZER 2023-477861<[01] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 60009161631; DUE DATE: 31-JAN-24.;[02] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 60009161631; DUE DATE: 31-JAN-24.;[03] REPAIRED INSPAR RIB LOCATED STAB STA 120.30 AND 18 INCHES FROM FRONT EDGE AT LT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4 PARAGRAPH 4 REPAIR INSTRUCTIONS <BR>SEE INDIVIDUAL SIGN-OFF BELOW;[04] CERTIFIED STEP 3 COMPLETED <BR>RII

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