|LYCOMING O360 D3G – ATA 7810 ENGINE COLLECTOR/TAILPIPE/NOZZLE – PISTON ENGINE – ROUGH RUNNING. DR 611954011|
|Rough running (vibration) experienced at full power at around 300ft AGL on climb coupled with drop of approximately 100 -150 rpm. Oil Temperatures and Pressures in the green, fuel pressure stable.
Root cause: Failed exhaust muffler. It is probable that a part of the muffler has temporarily caused a blockage with resultant power reduction. Muffler piece may then have discharged overboard.
|CONTINENTAL IO520 – ATA 7331 FUEL FLOW INDICATING – CAP – LOOSE. DR 611954024|
|Fuel fumes in cabin when Aux fuel pumps or heater on.
Root cause: Fuel flow test/bleed line caps weeping fuel.
Removed, cleaned, inspected & refitted. Tested serviceable.
|LYCOMING IO360 M1A – ATA 7414 MAGNETO/DISTRIBUTOR – COIL – FAILED. DR 611954037|
|Engine rough running in flight.
Root cause: R/H Magneto secondary coil failure.
Home Service difficulty reports (SDR) Piston 20 July-19 August 2019