Th-67 Ch. 9

Front 1

Land as soon as possible

Back 1

Land without delay to the nearest suitable area in which a safe approach and landing is reasonably assured. (The primary consideration is to ensure the survival of the occupants)

Front 2

Land as soon as practicable

Back 2

The landing site and duration of the flight are at the discretion of the pilot. Extended flight beyond the nearest landing area is not recommended. (The primary consideration is the urgency of the emergency.)

Front 3

Autorotate

Back 3

The term Autorotate is defined as adjusting the flight controls as necessary to establish an autorotational descent and landing.

1. Collective- Adjust as required to maintain rotor RPM (90 to 107%)
2. Pedals- Adjust. Crab or Slip as required.
3. Throttle- Adjust as necessary. Close as required.
4. Airspeed- Adjust as required.

Front 4

Emergency Shutdown

Back 4

The term Emergency Shutdown is defined as engine shutdown without delay.

1. Throttle- Close
2. Fuel Valve Switch- OFF
3. BATT switch- OFF as desired. Before turning off, pilot should consider a "Mayday" call, selecting emergency on the transponder and the possible effects of total electrical failure.

Front 5

AUTOROTATIONAL AIRSPEEDS

-Minimum rate of descent
-Minimum glide distance

Back 5

-minimum rate of descent is 52 KIAS

-maximum glide distance is 69 KIAS

Front 6

Engine failure at hover

Back 6

1. Autorotate

2. Emergency Shutdown

Front 7

Engine failure at low altitude/ low airspeed or cruise

Back 7

1. Autorotate

2. Emergency Shutdown

Front 8

Engine Restart During Flight

Back 8

>12,000 feet MSL (TOT rises too fast to control)

52 to 60 KIAS recommended descent

one minute required to restrart

1. Throttle- Close

2. Fuel Valve Switch- On

3. Attempt Start

4. Land ASA Possible

Front 9

Engine Compressor Stall Symptoms

Back 9

-Sharp rumble
-Series of loud, sharp reports
-Severe engine vibration
-rapid rise in TOT

Front 10

Engine Compressor stall Emergency Procedures

Back 10

1. Collective- Reduce

2. Engine Anti-ice and Heather switches- OFF

3. Land ASA Possible

Front 11

Engine Overspeed Indications

Back 11

-Right yaw
-Rapid increase in both rotor and engine RPM
-Increase in engine and rotor noise

Front 12

Engine Overspeed Emergency Procedure

Back 12

1. Collective- Increase enough to load rotor/ sustain engine and rotor RPM below the maximum operating limit

2. Throttle- Adjust until normal operating RPM is attained

3. Land as soon as possible (Power-on approach and landing by controlling the RPM manually with the throttle)

-if RPM cannot be controlled by throttle adjustment:

4. Autorotate

5. Emergency shutdown (during descent if time permits)

Front 13

Engine Underspeed E.P.

Back 13

1. Land as soon as possible

2. Autorotate

3. Emergency Shutdown (during descent if time permits)

Front 14

Engine Surges

Back 14

1. GOV INCR switch- Increase for max RPM

2. Throttle- Adjust to 97% N2

3. Land as soon as possible

-if engine surges are not controlled in steps 1,2,3 above, proceed as follows:

1. Autorotate

2. Emergency Shutdown (during descent if time permits)

Front 15

Fuel Boost Pump Failure

Back 15

1. Descend to >6000 ft. pressure altitude if possible

2. Land ASA Practicable

Front 16

LOW INLET PRESSURE light on

Back 16

1. Engine Alternate Air Switch- OPEN

2. If caution light remains on, Land ASA Possible.

3. If caution light goes out, Land ASA Practicable. Monitor engine parameters frequently until landing.

Front 17

ENGINE ICING

Back 17

1. Engine Anti-Icing Switch- ON

2. TOT- maintain within limits

Front 18

LOW ENGINE OIL PRESSURE / HIGH ENGINE OIL TEMP

Back 18

Engine Oil Pressure <50 PSI
Engine Oil Temperature >107 C

Land ASA Possible

These conditions indicate a severe leak may be present

Front 19

AIR CONDITIONING MALFUNCTION

Back 19

1. Air Conditioning and Fan switch- OFF

2. Land ASA Practicable

Front 20

FIXED PITCH SETTINGS
-reduced power (low torque)

Back 20

indicated by helicopter nose turning right when power is applied

1. If control can be maintained in powered flight, maintain control with power and accomplish a run-on landing ASA Practicable using airspeed, throttle, and collective to reduce sideslip angle at touchdown

2. If control cannot be maintained, close throttle immediately and accomplish autorotational landing

Front 21

FIXED PITCH SETTINGS
-increased power (high torque)

Back 21

Nose of helicopter will turn left when power is reduced.

1. Maintain control with power and airspeed (between 40 and 70 knots)

2. Continue powered flight to a suitable landing area where a run-on landing can be accomplished.

3. Execute a run-on landing with power and a touchdown speed that will minimize sideslip. Use throttle and collective, as necessary, to control sideslip and heading at touchdown.

Front 22

FIXED PITCH SETTINGS
-hover

Back 22

Helicopter heading cannot be controlled by pedals

Fixed pedal- land.

Front 23

COMPLETE LOSS OF TAIL ROTOR THRUST
-indications

Back 23

break in the drive system, such as a severed driveshaft, causing tail rotor to lose power

1. Pedal input has no effect on helicopter trim

2. Nose of the helicopter turns to right (left sideslip)

Front 24

COMPLETE LOSS OF TAIL ROTOR THRUST
-procedures

Back 24

1. Land immediately. If safe landing area is not immediately available, continue powered flight to suitable landing area at or above minimum rate of descent autorotational airspeed

2. When landing area is reached, make an autorotational landing (THROTTLE CLOSED)

3. Use airspeed above minimum rate of descent airspeed