Service difficulty report · Rib · Boeing 7377H4

Difficulty date
June 28, 2022
Submitted
July 29, 2022
Operation
Air carrier
Aircraft
N428WN
Make and model
Boeing 7377H4
Aircraft serial
29844
Aircraft time
66,134 hours, 39,057 cycles
Part
Rib
Condition
Cracked
Location
L/H 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

LH L/E #3 RIB - CRACKED AT BOTH ENDS BY FASTENER HOLE / [01] REMOVED #3 RIB AT L/H L/E IAW B737 SRM 51-40-02-0G-0.;[02] LOCATED AND DRILLED NEW RIB AT L/H L/E IAW B737 SRM 51-40-05-0G-0.;[03] VERIFIED AMT STEPS 1 AND 2 OK TO INSTALL.;[04] INSTALLED #3 RIB AT L/ H L/E IAW B737 SRM 51-40-02-0G-0.;[05] SUMMARY :REMOVED #3 RIB AT L/H L/E IAW B737 SRM 51-40-02-0G-0.LOCATED AND DRILLED NEW RIB AT L/H L/E IAW B737 SRM 51-40-05-0G-0.INSTALLED #3 RIB AT L/ H L/E IAW B737 SRM 51-40-02-0G-0.;[06] VERIFIED AMT STEPS 4 AND 5. AND STEP 3 AS RII.

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