Service difficulty report · Fitting · Boeing 7377H4

Difficulty date
January 4, 2023
Submitted
February 10, 2023
Operation
Air carrier
Aircraft
N214WN
Make and model
Boeing 7377H4
Aircraft serial
32486
Aircraft time
59,300 hours, 35,194 cycles
System (JASC)
5711 · Wing Spar
Part
Fitting
Condition
Cracked
Location
Zn 600 Right Win
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/W REAR SPAR T/E DEFLECTION CONTROL RIB PANEL VERTICAL BULB SEAL FITTING CRACKED INB MKD DOT<[01] REMOVED BUILD SEAL FITTING AT R/W REAR SPAR T/E DEFLECTION CONTROL IN REF SRM 51-40-02-0G-0;[02] LOCATED AND DRILLED HOLES AT BULB SEAL FITTING R/W REAR SPAR T/E DEFLECTION CONTROL RIB PANEL VERTICAL IN REF SRM 51-40-05 0G-0;[03] VERIFIED STEPS #1 AND #3.<BR> OK TO TREAT AND PRIME DRILLED HOLES.;[04] APPLIED TREATED PRIME HOLES AT BULB SEAL FITTING IN REF AMM 51-21-72-370-804;[05] VERIFIED STEP #4. <BR> OK TO INSTALL NEW REPLACEMENT FITTING.;[06] INSTALLED BULB SEAL FITTING AT R/W REAR SPAR T/E DEFLECTION CONTROL RID PANEL VERTICAL IN REF SRM 51-40-02-0G-0;[07] REMOVED AND REPLACE BULB SEAL FITTING AT T/E DEFLECTION CONTRO RIB PANEL PER SRM 51-40-02-0G-0;[08] VERIFIED STEPS 6 AND 7.

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