B206 Emergency Procedures

Question 1

Land as soon as possible

Answer 1

Land without delay at the nearest suitable area at which a safe approach and landing is reasonably assured.

Question 2

Land as soon as practical

Answer 2

The landing site and duration of flight are at the discretion of the pilot. Extended flight beyond the nearest approved landing area is not recommended.

Question 3

“Affected”

Answer 3

Fails to operate in the normal or usual manner

Question 4

“Normal”

Answer 4

Operates in the normal or usual manner

Question 5

ENG OUT

Answer 5

Gas producer less than 55%, N2 decreasing.

Verify engine condition. Accomplish engine failure procedures.

Question 6

BATTERY HOT

Answer 6

Battery overheating (140 deg F or hotter)

Turn BAT switch OFF and land as soon as practical. If BATTERY RLY caution light illuminates, land as soon as possible.

Question 7

LITTER DOOR OPEN

Answer 7

Close door securely before flight.

If light illuminates during flight, land as soon as practical.

Question 8

ROTOR LOW RPM
(audio and light)

Answer 8

Rotor RPM below 90%

Reduce collective pitch and ensure throttle is full open. Light and audio should cease when ROTOR RPM increases above approximately 90%.

Question 9

TRANS OIL PRESS

Answer 9

Transmission oil pressure is below minimum.

Reduce power, verify fault with gage. Land as soon as possible.

Question 10

TRANS OIL TEMP

Answer 10

Transmission oil temperature is at or above red line.

Reduce power, verify fault with gage. Land as soon as possible.

Question 11

BATTERY RLY

Answer 11

Battery relay has malfunctioned to the closed position with BAT switch OFF

If BATTERY HOT light is illuminated, land as soon as possible

Question 12

FUEL LOW

Answer 12

Approximately 50-75 lbs of fuel remaining.

Verify gage quantity. Plan landing.

Question 13

ENG CHIP

Answer 13

Metallic particles in engine oil.

Land as soon as possible.

Question 14

TRANS CHIP

Answer 14

Metallic particles in transmission oil.

Land as soon as possible.

Question 15

FUEL FILTER

Answer 15

A/F fuel filter clogged.

Land as soon as possible.
Clean before next flight.

Question 16

T/R CHIP

Answer 16

Metallic particles in tail rotor gearbox.

Land as soon as possible.

Question 17

GEN FAIL

Answer 17

Failure of generator.

GEN switch - RESET then ON.
If GEN FAIL light remains on, GEN switch OFF. Land as soon as practical.

Question 18

R/FUEL PUMP

Answer 18

Right pump of the dual boost pump assembly may have failed.

Descend below 6000’ PA if flight permits. Land as soon as practical.

Question 19

L/FUEL PUMP

Answer 19

Left pump of the dual boost pump assembly may have failed.

Descend below 6000’ PA if flight permits. Land as soon as practical.

Question 20

Engine fire during start or shutdown

Answer 20

Indications:
1. Excessive TOT.
2. Visible smoke or fire.

Procedure:
1. Throttle - Closed.
2. FUEL VALVE switch - OFF.
3. Engine start switch - Press to motor engine until TURB OUT TEMP stabilizes at normal temperature.
4. Shut down and exit helicopter.

Question 21

Engine Fire during flight

Answer 21

Indications:
1. Smoke
2. Fumes
3. Fire

Procedure:
1 Throttle - Closed
2. Immediately enter autorotation.
3. FUEL VALVE switch - OFF.
4. BAT switch - OFF.
5. GEN switch - OFF.
6. Execute autorotative descent and landing.

Question 22

Engine Failure - Hovering in ground effect

Answer 22

Indications:
1. Left yaw.
2. ENG OUT warning light illuminated.
3. Engine out audio (not installed).
4. ROTOR RPM decreases with ROTOR LOW caution light and audio warning.
5. Engine instruments indicate power loss.

Procedure:
1. Maintain heading and landing attitude.
2. Collective - Adjust to control rate of descent and cushion landing
(touchdown should happen before passing through 70% RRPM)
3. Land
4. Shut down helicopter

Question 23

Engine Failure - Out of Ground Effect

Answer 23

Indications:
1. Left yaw.
2. ENG OUT warning light.
3. ENG OUT audio (if installed).
4.ROTOR RPM descreases with ROTOR LOW caution light and audio on when RRPM drops below 90%.
4. Engine instruments indicate power loss.

Procedure:
1. Maintain heading and attitude control.
2. Adjust collective to maintain 90-107% RRPM.
3. Apply collective pitch as flare effect decreases to cushion landing. Make a level touchdown before passing through 70% RRPM if possible.
4. Cyclic: Adjust to obtain desired autorotative airspeed (100 KIAS MAX).
5. Attempt air restart if ample altitude remains.
6. At low altitude:
- A: Throttle closed
- B: FUEL VALVE switch - OFF
- C: Accomplish autorotative landing.
7. Complete helicopter shutdown.

(avoid excessive collective up ground run or floating in the flare).

(RRPM at the high end of the range increases rotor energy, but will also increase rate of descent).

Question 24

Engine Restart

Answer 24

(Do not attempt if signs of obvious mechanical failure)

1. Maintain control of helicopter.
2. Collective - Adjust to maintain 90-107% RRPM.
3. Throttle closed.
   4 AIRSPEED - 45-54 KIAS.
4. FUEL VALVE switch - ON.
5. START switch - Press to engage.
6. Throttle - Idle.
7. TURB OUT TEMP - Monitor range 760-826 deg C.
8. Throttle - Advance smoothly to open position.
   (IF UNABLE TO RESTART)
9. Throttle - Closed
10. FUEL VALVE switch - OFF.
11. Accomplish autorotative descent and landing.

Question 25

ENGINE OVERSPEED

Answer 25

Causes: Fuel control failure, N2 governor failure, Mechanical drive failure to accessory sections of N1 or N2.

Indications: Increased RRPM, Increased N2 RPM, Increased N1 RPM, Increased TORQUE.

Procedure:
1. Throttle - Retard.
2. GAS PRODUCER RPM or POWER TURBINE RPM: Stabilize with throttle.
3. TOT: Monitor for normal operation.
4. Collective - Adjust as required to maintain 90-107% RRPM.
5. Cyclic - Maintain desired airspeed.
6. Prepare for power off landing.

(If RPM and TOT cannot be maintained, shut down the engine).

Question 26

ENGINE UNDERSPEED

Answer 26

Indications:
1. Abrupt decrease in GAS PRODUCER RPM.
2. Subsequent decrease in POWER TURBINE RPM.
3. Possible decrease in ROTOR RPM.
4. Decrease in TORQUE.

Procedure:
1. Collective - Adjust to maintain 90-107% ROTOR RPM.
2. Throttle - Idle stop.
3. Establish autorotative glide.
4. Prepare for power off landing.

Question 27

ENGINE COMPRESSOR STALLS

Answer 27

Indications:
1. Engine “pops”.
2. High or erratic TOT.
3. Decreasing or erratic N1 or N2 RPM.
4. Torque oscillations.

Procedure:
1. Collective - Reduce power, maintain slow cruise flight.
2. TURB OUT TEMP and GAS PRODUCER RPM - Check for normal indications.
3. ENG ANTI-ICING switch - OFF.

(NOTE: Severe compressor stalls may require engine to be shut down. Less severe stalls may permit flight at reduced power)

IF PILOT ELECTS TO CONTINUE FLIGHT:
4. Collective - Increase slowly to acheive desired power level.
5. TOT and N2 - Monitor for normal responses.
6. Land as soon as practical.

IF PILOT ELECTS TO SHUT DOWN ENGINE:
7. Throttle - Closed.
8. FUEL VALVE switch - OFF.
9. Collective - Maintain 90-107% ROTOR RPM.
10. Cyclic - Maintain desired airspeed.
11. Prepare for power off landing.

Question 28

HYDRAULIC SYSTEM FAILURE

Answer 28

Indications:
1. Grinding or howling noise from the pump.
2. Increased force to move flight controls.
3. Flight control feedback forces.
4. Cyclic and collective movements are rate limited.

Procedure:
1. Reduce AIRSPEED to 61-69 KIAS.
2. HYDR SYSTEM circuit breaker - OUT. If power not restored, push breaker in.
3. HYDRAULIC SYSTEM - ON. OFF if power not restored.
4. Land as soon as practical and investigate.
5. A run on landing at approximately 9 KIAS is recommended.

Question 29

COMPLETE LOSS OF TR THRUST

Answer 29

Indications:
1. Uncontrollable right yaw.
2. Nose down tucking.
3. Possible roll of the fuselage.

Procedure:
HOVERING: Close throttle completely and perform hover auto.
IN FLIGHT: Throttle - Idle and enter autorotation. Maintain at least 52 KIAS during descent.
(low power flight may be possible).

(execute a slightly nose high landing)

Question 30

FIXED PITCH FAILURES

Answer 30

Indications:
1. Lack of directional response.
2. Locked pedals.

HOVERING: Do not close throttle completely unless severe right yaw. Land from a hover.

IN FLIGHT - LEFT PEDAL APPLIED: Land in a sideslip with sufficiently low airspeed. Raising collective before touchdown will reduce left yaw.

IN FLIGHT - RIGHT PEDAL APPLIED: Perform run on landing. reduce throttle to maintain heading as you raise collective to cushion landing. If right yaw becomes excessive, close throttle completely.

(Do not force stuck pedals)

Question 31

GENERATOR FAILURE

Answer 31

Indications:
1. GEN FAIL caution light.
2. DC loadmeter indicates zero.

Procedure:
1. Check GEN FIELD and GEN RESET circuit breakers in.
2. GEN switch - RESET then ON.
3. If power not restored, place GEN switch to OFF and land as soon as practical.

Question 32

EXCESSIVE ELECTRICAL LOAD

Answer 32

Indications:
1. DC loadmeter indicates excessive load.
2. Smoke or fumes.

Procedure:
1. GEN switch. - OFF.
2. BAT switch - OFF.
3. LEFT FUEL BOOST circuit breaker - Check in.
4. Land as soon as practical.

(altitude must be reduced below 6000’ before battery depletion. Unuseable fuel may be as high as 160 lbs after battery is depleted)

(left boost pump will operate about 3 hours day, 1 hour night with unnecessary electrical equipment turned off)

Question 33

FUEL TRANSFER FAILURE

Answer 33

Indications: Below 407 lbs fuel, fuel quantity in forward cells remains constant.

Procedure:
1. Determine FUEL QTY in forward cell (FEATURE NOT INSTALLED!)
2. Subtract forward cells fuel quantity to determine unuseable fuel.
3. Plan landing accordingly.

Question 34

ENGINE OIL PRESSURE LOW, HIGH, OR FLUCTUATING

Answer 34

If engine OIL pressure is below minimum or aboce maximum, land as soon as possible.

If engine oil pressure fluctuates but within limits, Monitor pressure an temperature and land as soon as practical.

Question 35

ENGINE OIL TEMPERATURE HIGH

Answer 35

Land as soon as possible.