Service difficulty report · Fitting · Boeing 7377H4

Difficulty date
June 24, 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
Fitting
Condition
Cracked
Location
Lt Wing
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

L/W FIXED T/E DEFLECTION CONTROL RIB LOWER VERTICAL SEAL FITTING CRACKED IB SIDE ; / [01] REMOVED L/W FIXED T/E DEFLECTION CONTROL RIB LOWER VERTICAL SEAL FITTING I/B SIDE IAW SRM 51-40-02-0G-0.; [02] LOCATED AND DRILLED NEW L/W FIXED T/E DEFLECTION CONTROL RIB LOWER VERTICAL SEAL FITTING I/B SIDE IAW SRM 51-40-05-0G-0 AND BOEING DWG #115A2930.; [03] VERIFIED STEPS #1 AND #2.; [04] OK TO TREAT AND PRIME DRILLED HOLES.; [05] TREATED AND PRIME NEW L/W FIXED T/E DEFLECTION CONTROL RIB LOWER VERTICAL SEAL FITTING I/B SIDE IAW SRM 51-20-01-0G-0.; [06] VERIFIED STEP #5.; [07] OK TO INSTALL SEAL FITTING.; [08] INSTALLED NEW L/W FIXED T/E DEFLECTION CONTROL RIB LOWER VERTICAL SEAL FITTING I/B SIDE IAW SRM 51-40-02-0G-0.; [09] (FINAL) REMOVED AND REPLACED L/W FIXED T/E DEFLECTION CONTROL RIB LOWER VERTICAL SEAL FITTING I/B SIDE IAW SRM 51-40-02-0G-0; SRM 51-40-05-0G-0 AND BOEING DWG #115A2930.; [10] VERIFIED STEPS 8/9; [11] VERIFIED ALL STEPS

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