Service difficulty report · Pin · Boeing 737990ER

Difficulty date
February 19, 2026
Submitted
February 23, 2026
Operation
Air carrier
Aircraft
N471AS
Make and model
Boeing 737990ER
Aircraft serial
41703
Aircraft time
41,951 hours, 12,988 cycles
Part
Pin
Part number
141A60763
Condition
Sheared
Location
L1 Door
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

FA REPORTS L1 DOOR NOT OPENING PROPERLY DOOR DOESNT OPEN ALL THE WAY. GROUNDED - YES. UPON L1 DOOR INSPECTION FOUND L1 DOOR TOP GUIDE ARM PIN BOTTOM SECURING SCREW HEAD SHEARED OFF CAUSING DOOR OPS ISSUE. R & R PIN ASSEMBLY IAW AMM 52-11-21 DOOR OPS CHKD GOOD. EA 900ER-52EA-29969 ISSUED FOR THE L1 DOOR BOTTOM RADIUS LINK AND GUIDE ARM GOUGES, REPAIR OR REMOVE AND REPLACE THE DAMAGED GUIDE ARM AND RADIUS LINK WITHIN 100 FLIGHT HOURS FROM 2/20/2026. L1 DOOR REMOVED, GUIDE ARM & RADIUS LINK REPLACED REF AMM 52-11-00-400-802 & AMM AMM 52-11-21-400-802, L1 REINSTALLED REF AMM 52-11-00-400-802, ACCOMPLISHED FORWARD ENTRY DOOR SYSTEM TEST TESTED GOOD, DOOR NOW OPERATES SMOOTHLY NO BINDING REF AMM 52-11-00-700-804.