Service difficulty report · Cylinder · Doug R4D8

Difficulty date
June 10, 2026
Submitted
June 10, 2026
Operation
General aviation
Aircraft
N28TN
Make and model
Doug R4D8
Aircraft serial
43354
Aircraft time
22,888 hours
Engine
Wright R182080
Engine time
470 hours
Part
Cylinder
Condition
Separated
Location
Engine
Stage of operation
AP
How discovered
O
Nature of condition
Y
Precautionary procedure
E

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ON 6/9/26 ABOUT 1:00PM AKST, THE SUPER DC3 TAIL NUMBER N28TN WAS RETURNING TO ANCHORAGE WHEN THE #2 ENGINE FAILED. UPON INSPECTION THE #9 CYLINDER CRACKED AROUND THE BASE, SEPARATED FROM THE ENGINE AND LODGED IN THE COWLING. THE FLIGHT CREW SHUT THE ENGINE DOWN AND LANDED SAFELY IN ANCHORAGE. THE FLIGHT CREW STATED THAT THE FIRE LIGHT FOR THE #2 ENGINE BRIEFLY ILLUMINATED, AND THEY WERE ABLE TO GO THROUGH THE CHECKLIST AND EXTINGUISH THE LIGHT. AFTER INSPECTING THE DAMAGE WE DECIDED TO REMOVE THE ENGINE FOR REPAIR.

More about the Doug R4D-8