Service difficulty report · Rib · Boeing 7377H4

Difficulty date
July 31, 2021
Submitted
September 20, 2021
Operation
Air carrier
Aircraft
N410WN
Make and model
Boeing 7377H4
Aircraft serial
27897
Aircraft time
66,797 hours, 39,221 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
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 129.50 AND 27 INCH FROM FRONT SPAR AT RT HORIZONTAL STABILIZER ; 2021-356566 / [01] TOOL USED. PN: MIZ-21C. SN: 769680. DUE DATE: 26-FEB-22; [02] TOOL USED: P/N: NORTEC 600D; S/N210138203; DUE DATE: 05-MAR-22; [03] TOOL USED P/N: NORTEC 600D; S/N210138203; DUE DATE: 05-MAR-22; [04] REPAIRED INSPAR RIB LOCATED STAB STA 129.50 AND 27 INCH FROM FRONT SPAR AT RT HORIZONTAL STABILIZER I.A.W B737-700 SRM 55-10-09-2R-4 REPAIR 4 AND SRM 51-40-02.; [05] JOB COMPLETED AND CERTIFIED AS RII.

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