Operational maintenance Ancillary works Work on meeting the

Operational maintenance Ancillary works Work on meeting the aircraft - will be executed after each landing. Work to ensure that parking - the waiting until the next departure more than 2 hours; - plane placed on the implementation of maintenance or storage; - plane is moved to another parking lot. Work to ensure that departure of the aircraft - immediately before each flight; - after the forms service; - at a delay of up to 12 hours of departure.

Operational maintenance Form A1 is satisfied: before every flight unless required to do a form of A2 or B; at a delay of flight prepared to fly an airplane from 12 to 5 days; before the flight after the periodical maintenance; at regular fueling during training flights. Form A2 is satisfied: once a day after the scheduled flight; in a raid at least 5 hours after a previous form A2,B; when preparing the aircraft for flight after being idle for more than 5 days if the aircraft is not placed on storage; before the flight after special maintenance; after controlling for aircraft overflight.

Operative Maintenance Line Maintenance B – is carried out: Once in (15+5) days of regular operation (at performance at least one flight a day), if the next periodic maintenance is not required -before the flight after storage before the aircraft operation after it’s receipting from the manufacturer

Periodic Maintenance It is appointed to: On flying time in hours – after every (300+60) и (5400±300) flying time and values multiple to this sizes Cycle of periodic maintenance on flying time

7 - Біла

CAUTION AND EXTIRPATION OF ICE FORMATION Icing is formed on the surface of aircraft at ambient temperature lower than +5º C There are four types of ice formation: Rime and crystalline hoarfrost Is formed rapidly and is defined by not high consistency of cohesion with surface of aircraft Rime: from +5º till -10ºС;Hoarfrost : From -10º till -25ºС Granular hoarfrost Is formed at ambient temperature from -4º till -7ºС Friable structure with white-matted colour Is characterised by low adherence with case Ground surface icing Supercooled rain drops, drizzling rain or snow Is formed at temperature from 0 till -3ºС Dense ice deposition with durable adherence with case Combined deposits Are formed during changeable weather and temperature oscillations From +5º till -5ºс

CAUTION AND EXTIRPATION OF ICE FORMATION For prevention of ice formation is applied handling the surface of aircraft with special liquids which lower the temperature of water freezing «АРКТИКА» - 52% water solution of «ethylene glycol» + small quantity of emulsifier ОП-7 or ОП-10 for increasing penetrant function. Freezing temperature low than -37ºС. Decomposition period 24 hours «АРКТИКА» 200 – 70% water solution of «ethylene glycol». Freezing temperature low than -55ºС. Decomposition period 2.5 days ABC-3Mk.2 (England) – water solution of «polypropylene glycol». Depending on concentration freezing temperature -60ºС. Decomposition period 5-7 days