Ice & Rain Protection

Question 1

What Anti-Ice protection equipment is installed on the S-92?

Answer 1

1. Engine inlet dual zone electrical heating mats (AC powered)
2. Engine bleed air provides anti-ice to the IPS and the compressor inlet guide vanes.
3. Pitot Heat System- All three pitot tubes electrically heated (Pilots/standby- DC Ess, Copilots- #1 DC Pri)
4. Windshield Anti-Ice (AC Pri and DC Pri)

Question 2

With only APU generator power what Ice Protection will be lost?

Answer 2

WARM Air
1. Windshield Anti-Ice
2. AVC
3. RIPS - MR & TR blades. Droop stops are still heated
4. Mats* #1 Engine Inlet Anti-Ice heating mat
5. Air conditioning

Question 3

In IFR and icing conditions and with only APU generator power what must the pilot do to ensure he/she has the ability to see the runway when breaking out of the clouds?

Answer 3

Pilot windshield Anti-ice can be recovered by selecting the override (OVRD) position

Question 4

What does an INLET 1 A-ICE FAIL caution indicate?

Answer 4

Indicates a problem with the electrical inlet heating mats.

Question 5

What does an ENG 1 A-ICE DGRD caution indicate?

Answer 5

Indicates a problem with the bleed air portion of the system

Question 6

When should the pilot turn the Engine Anti-Ice and Pitot heat on?

Answer 6

When the OAT is less than 5 degrees C.

Question 7

What does the Rotor Ice Protection System (RIPS) provide?

Answer 7

Provides main rotor and tail rotor in-flight deicing

Question 8

Is there a maximum altitude that the RIPS system is certified to?

Answer 8

Altitude Limits- RIPS Flight in icing conditions: 10,000 feet pressure altitude

Question 9

Can the Rotor Ice Protection system provide blade heating/deice while on the ground?

Answer 9

A Weight on wheels interlock prevents blade heating while on the ground.
The pilot or copilot can select the ground override mode, which will provide one heating cycle to the main and tail rotor.

Question 10

How is the RIPS system turned on and controlled?

Answer 10

Control soft key (CTL) of the PFD is used to place the RIPS in one of the six operations modes: OFF, AUTO, or manual mode Trace, Light, Moderate or Heavy)

Question 11

What does the advisory SLIPRING BRNG mean?

Answer 11

The primary main rotor slip ring bearing has failed and the secondary bearing will allow continued operation for another 10 hours.

Question 12

What icing conditions are restricted or prohibited from flying into?

Answer 12

Flight in freezing drizzle/freezing rain/supercooled large drops (SLD) is prohibited
For flight into icing conditions, the Rotor Ice Protection System (RIPS) must be turned on.