Service difficulty report · Rib · Boeing 7377H4

Difficulty date
October 2, 2021
Submitted
November 18, 2021
Operation
Air carrier
Aircraft
N786SW
Make and model
Boeing 7377H4
Aircraft serial
29811
Aircraft time
68,452 hours, 40,246 cycles
Part
Rib
Condition
Cracked
Location
R/H Horiz. 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

R/H HORIZONTAL STABILIZER RIB 4 AT STAB. STA-120.30; STIFFENER 4 CRACKED. ; / [01] REMOVED DAMAGE AT RH H.S RIB #4 STIFFENER #4 AS PER B737-7 SRM 51-10-02-0G-0;[12] INSTALLED REPAIR PARTS AS PER B737-700 SRM 51-40-02-0G-0 AND SRM 55-10-09-2R-4 REPAIR 4.; [13] APPLIED FILLET SEAL AROUND REPAIR PARTS AS PER B737-700 SOPM 20-50-19; [14] LATE ENTRY: MIXED SEALANT BMS 5-95 AT 23:00 10/19/2021; SQUEEZE OUT AND FASTENER INSTALLATION VERIFICATION DUE BY 01:00 10/20/2021; [15] LATE ENTRY: SEALANT SQUEEZE OUT VERIFICATION AND 100% PERMANENT FASTENER INSTALLATION ACCOMPLISHED PRIOR TO SQUEEZE OUT LIFE PER SOPM 20-50-19; [16] VERIFIED STEPS 12; 13; 14 AND 15. TASK COMPLETE

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