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