Service difficulty report · Threshold · Boeing 7377H4

Difficulty date
March 22, 2026
Submitted
April 9, 2026
Operation
Air carrier
Aircraft
N464WN
Make and model
Boeing 7377H4
Aircraft serial
32468
Aircraft time
72,136 hours, 43,244 cycles
Part
Threshold
Condition
Corroded
Location
Zn 100
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

CORROSION ALONG AFT CARGO DOOR TRHESHOLD<[01] REMOVED AND REPLACED TRHESHOLD ON FWD CARGO; IAW B737 SRM 51-40-02-0G STEP 5; AND DWG 146A8340 R -;[02] CORRECTION TO CORRECTIVE ACTION: REMOVED AND REPLACED THRESHOLD ON AFT CARGO; IAW B737 SRM 51-40-02-0G STEP 5; AND DWG 146A8340 R -;[03] VERIFIED COMPLETE.

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