Service difficulty report · Threshold · Boeing 7377H4

Difficulty date
April 4, 2024
Submitted
May 9, 2024
Operation
Air carrier
Aircraft
N475WN
Make and model
Boeing 7377H4
Aircraft serial
32474
Aircraft time
65,737 hours, 39,139 cycles
Part
Threshold
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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

AFT CARGO BAY FORWARD CORNER THRESHOLD IS CRACKED<[01] COMPLETED STEP 5;6.;[02] REPAIRED AFT CARGO BAY FORWARD CORNER THRESHOLD BY WELDING; APPLIED CHEMICAL CONVERSION AND PRIMED; ALL PER SRM 53-60-15-2R-1;[03] VERIFIED CORRECTIVE ACTION 2

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