SDR 2017FA0000484

Service difficulty report · Clamp · Amtr TORNADOII

Difficulty date: August 6, 2017
Submitted: September 10, 2017
Operation: General aviation
Aircraft: N80437
Make and model: Amtr TORNADOII
Aircraft serial: D03912SOHKO4
Aircraft time: 413 hours
System (JASC): 7910 · Engine Oil Storage (Airframe Furnished)
Part: Clamp
Condition: Failed
Location: Oil Tank
Stage of operation: CR
How discovered: O
Nature of condition: K
Precautionary procedure: A

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

What was found

DURING FLIGHT THE SIGHT TUBE USED TO SHOW THE OIL LEVEL IN THE OIL TANK CAME LOOSE AND ALLOWED THE OIL TO DRAIN FROM THE ENGINE. THE CLAMP THAT HELD THE TUBE TO THE FITTING FAILED AND OIL LEAKED OUT OF THE TANK. THE ENGINE IN OIL AND AIR COOLED. THE LOSS OF OIL ALLOWED THE CYLINDER HEADS TO OVER HEAT. OIL PRESSURE ALSO DROPPED FROM A NORMAL OF 85 PSI TI ABOUT 20 PSI BEFORE LANDING.