Service difficulty report · Rib · Boeing 7377H4

Difficulty date
June 21, 2021
Submitted
August 4, 2021
Operation
Air carrier
Aircraft
N417WN
Make and model
Boeing 7377H4
Aircraft serial
29822
Aircraft time
65,751 hours, 38,956 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

LEFT HORIZONTAL STABILIZER FRONT SPAR L/E FAIRING CRACKED @ RIB # 7 END EDGE ; / [01] REMOVED RIB #7 FROML/H STAB. FRONT SPAR L/E FAIRING PER B737-700 SRM 51-40-02-0G-0; [02] LOCATED AND DRILLED NEW RIB P/N 186A1307-3 PO # 1718180 PER B737-700 SRM 51-40-05-OG-0; [03] VERIFIED HOLES; [04] OK TO INSTALL NEW RIB.; [05] INSTALLED #7 RIB IAW. B-737-700 SRM 51-40-02-0G-; [06] REMOVED AND REPLACED RIB #7 AT LEG HORIZONTAL STAB. FRONT SPAR L/E. FAIRING IAW. B-737-700 SRM 51-40-02-0G-0; [07] VERIFIED 5; 6.

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