Service difficulty report · Rail · Boeing 7377H4

Difficulty date
March 1, 2020
Submitted
March 31, 2020
Operation
Air carrier
Aircraft
N458WN
Make and model
Boeing 7377H4
Aircraft serial
33857
Aircraft time
55,631 hours, 33,048 cycles
Part
Rail
Part number
143A98535
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

FORWARD CARGO PIT AFT BULKHEAD STA 500D STRUCTURE LOWER CHORD HAS CORROSION ON UPPER SURFACE LBL24-RBL24 WL156 / REMOVED FORWARD CARGO AFT BULKHEAD STRUCTURE LOWER RAIL CHORD IAW SRM 51-40-02-0G-0 DUE TO CORROSION. VERIFIED NEW LOWER RAIL PART NO 143A985-35 IAW BOEING DWG 143A9481 REV -. LOCATED; DRILLED AND INSTALLED NEW LOWER SUPPORT RAIL ANGLE IAW SRM 51-40-05-0G-0 SRM 51-40-02-0G-0 AND BOEING DWG 143A9481 REV-

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