Service difficulty report · Rib · Boeing 7377H4

Difficulty date
December 13, 2023
Submitted
January 17, 2024
Operation
Air carrier
Aircraft
N237WN
Make and model
Boeing 7377H4
Aircraft serial
34632
Aircraft time
58,916 hours, 35,293 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 111.10 AT 29 INCHES FROM FRONT SPAR AT RT HORIZONTAL STABILIZER 2023-761418<[01] EQUIPMENT P/N PHASEC 3D; S/N 587435/07; DUE DATE: 15-FEB-24 AND DIGITAL CALIPER P/N 500-752-20; S/N B21038255; DUE DATE: 03-OCT-24 WERE USED.;[02] TOOL USED: EDDY CURRENT INSTRUMENT P/N: NORTEC 600D; S/N: 210138503; DUE DATE: 21-JUL-24;[03] PERFORMED REPAIR LOCATED INSPAR RIB 111.10 AT 29 INCHES FROM FRONT SPAR AT RT HORIZONTAL STABILIZER IAW B737-700 55-10-09-2R-4 REPAIR 4;[04] PERFORMED REPAIR LOCATED INSPAR RIB 111.10 AT 29 INCHES FROM FRONT SPAR AT RT HORIZONTAL STABILIZER IAW B737-700 55-10-09-2R-4 REPAIR 4

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