Service difficulty report · Rib · Boeing 7377H4

Difficulty date
November 22, 2021
Submitted
January 4, 2022
Operation
Air carrier
Aircraft
N456WN
Make and model
Boeing 7377H4
Aircraft serial
32463
Aircraft time
58,184 hours, 34,533 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CRACK INSPAR RIB (STAB STA 120.30) AT 36 INCH FROM FRONT SPAR LT HORIZONTAL STAB ; 2021-536372 / [01] TOOL USED EDDY CURRENT EQUIPMENT PN. NORTEC 600D; SN. 210138203; DUE DATE: 05-MAR-22; [02] TOOL USED EDDY CURRENT INSTRUMENT P/N NORTEC500D S/N N500X12101U102020 DUE DATE: 01-JUN-22; [03] TOOL USED CALIPER P/N 700-113-10 S/N 0033178 DUE DATE 22-SEP-22; RADIUS GAGE P/N S167C S/N AE-35945 DUE DATE 26-MAY-22; [04] REPAIRED INSPAR RIB STAB STA 120.30 AT 36 INCH FROM FRONT SPAR AT LT HORIZONTAL STABILIZER I.A.W B737-700 SRM 55-10-09-2R-4 REPAIR 4 SEE INDIVIDUAL SIGNOFFS BELOW.; [05] JOB COMPLETED AND CERTIFIED AS RII.

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