2 - EC175 Servicing

Question 1

What are the 2 ways of manoeuvring the aircraft?

Answer 1

• Tractor and tow bar (normal method)
• Hand bar (delicate manoeuvring e.g. on to other aircraft).

Question 2

What are the movement limits when towing?

Answer 2

• Max 110 degrees lateral on aircraft end
• Max 90 degrees lateral on tractor end
• Max 10 kph.

Question 3

List the components of full parking / mooring kit:

Answer 3

• Pitot / static blanks
• Temperature probe blanks
• Intake blanks (generators, cooling)
• Engine blanks (intakes, exhausts)
• Main rotor blade tie downs / tip socks
• Tail rotor flapping stops
• Ladder.

Question 4

Where are the 4 standard mooring rings located on the airframe?

Answer 4

• 2 x under the cockpit steps
• 2 x under the rear fuel tank.

Question 5

At what wind speeds is the standard mooring configuration sufficient?

Answer 5

Between 35 and 65 knots

Question 6

Above what wind speed should the aircraft be parked in a hangar?

Answer 6

80 knots

Question 7

List the range of wind conditions and relevant parking considerations:

Answer 7

• Always: At least 1 main wheel chocked
• 10 - 25 knots: Aircraft in to wind, 1 blade in 12 o’clock position
• > 25 knots: Both main wheels chocked
• > 35 knots or CBs: Onshore - in a hangar
  Offshore - if possible, don’t shut down;
  - if necessary, relocate
  - if above is unavoidable, blade socks and secure to surface.

Question 8

Where is the onboard tie downs kit located?

Answer 8

Behind LH pilot seat (slide seat fwd to remove bag)

Question 9

What are the contents of the onboard tie down kit?

Answer 9

• 5 x blade socks
• 4 x ratchet straps
• 3 x tail rotor locks
• 4 x pole segments c/w pins (for reaching blade tips).

Question 10

Describe the blade tiedown configuration:

Answer 10

• position blades with 1 in the 11 o’clock position
• tie the 2 fwd blades to each of the fwd mooring rings (under the cockpit steps)
• tie the rear 2 LH blades to the LH grab handle, and the RH blade to the RH grab handle
• use slip knots and tie to allow 10-20cm of deflection on blades (don’t over-tension).

Question 11

Describe the mooring procedure:

Answer 11

• use 8 tie-down straps
• use 2 straps per mooring point (2 points below cockpit steps, 2 points below rear fuel tank)
• each pair of straps should be separated by 60 degrees.