Service difficulty report · Engine · Robsin R44

Difficulty date
September 8, 2004
Submitted
March 3, 2005
Operation
General aviation
Make and model
Robsin R44
Aircraft time
1,607 hours
Engine
Lyc O540F1B5
Part
Engine
Condition
Making Metal
Stage of operation
IN
How discovered
9
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

(CAN) DURING AN SCHEDULED INSPECTION, THE OIL FILTER WAS LITTERED WITH METAL CONTAMINATION. THERE WAS EVIDENCE OF BRASS, ALUMINUM AND FERRIOUS METAL. THE ENGINE WAS REMOVED AND WILL BE SENT TO THE OVERHAUL SHOP FOR FURTHER INVESTIGATION. THE PISTON PIN PLUGS ARE A DEFINITE SUSPECT IN REGARDS TO THE BRASS FLAKES. ONCE THE ENGINE IS DISASSEMBLED, FURTHER REASONS FOR THE CONTAMINATION WILL BE AVAILABLE.