EC135 Preflight Quiz Quiz: 10 questions / 75 % to pass Full Name Email You spot a 1m x 1m pool of oil under the helicopter: contact technical on-duty its normal in this HC type uplift all oils to max just clean the floor None During DC-check voltage difference between systems I / II is: can be 25 Volts must be less than 1 Volt normal when > 2 Volts must be 1 – 2 Volts Lead-Lag damper has gaps between metal and rubber: normal behaviour totally unacceptable, HC grounded look at MEL depends on variation ref. P2+ / T3 Engine oil level is checked: after every flight before flight in the morning by mechanic biweekly ARIS Damper condition: can be checked from CAD cannot be checked from passenger area is only checked at maintenance can be checked from MRGB and passenger areas Cracks/Holes in Honeycomb: not allowed, contact technical on-duty are allowed up to 10 ea look at MEL are allowed up to 10 cm2 Hydraulic fluid/air sight class: must be full of red hydraulic fluid can be ignored must be full of air must have some fluid Draining fuel from drain valve is: taken from supply tank taken from main tank voluntary taken from main and supply tanks Rotor brake disc is blue spotted: you cannot see brake disk contact technical on-duty its normal, no worries HC is grounded Water/Debris -check for fuel is done: by mechanic every morning once a week during heavy maintenance Time’s up