Service difficulty report · Threshold · Boeing 7377H4

Difficulty date
March 17, 2020
Submitted
April 15, 2020
Operation
Air carrier
Aircraft
N926WN
Make and model
Boeing 7377H4
Aircraft serial
36629
Aircraft time
40,878 hours, 24,621 cycles
Part
Threshold
Condition
Corroded
Location
Fuselage
Stage of operation
IN
How discovered
V
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*** ON SUBTHRESHOLD WEB AT FWD CARGO BAY BS440- BS494 RBL25 WL156. / REMOVED AND REPLACED FWD CARGO BAY SUBTHRESHOLD ASSY B.S. 440-494 LBL 25 WL 156 P.O. # 777761/1 PER SRM 51-40-05-0G-0 SRM 51-40-02-0G-0 AND DWG 143A8330

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