Service difficulty report · Rail · Boeing 737990ER

Difficulty date
September 26, 2025
Submitted
October 7, 2025
Operation
Air carrier
Aircraft
N434AS
Make and model
Boeing 737990ER
Aircraft serial
61620
Aircraft time
35,108 hours, 10,848 cycles
Part
Rail
Part number
143A948534
Condition
Corroded
Location
Zone 100
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

FWD CARGO AFT BULKHEAD R/H SUPPORT CORRODED RBL 30 TO 35 STA 500L. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-30-08-1A-1. REMVOED AND REPLACED SUPPORT RAIL ON FWD CARGO AFT BULKHEAD RH BTW RBL 30 TO 35 STA 500L IAW B737-900ER SRM 51-40-02W =2.00" OT= 0.071" RT: 0.049" L= 3.00" D= 0.022".