AS350 Emergency Check Sheet

Question 1

ENG P

Answer 1

Engine oil pressure below minimum- LAND ASAP

Question 2

FIRE.
During start

Answer 2

Close fuel shutoff valve, fuel pump switch off, crank for 10 seconds battery off.

Question 3

FIRE
Hover takoff or landing

Answer 3

Land immediately
After landing close fuel shutoff lever, fuel pumps off, crank 10 seconds, battery off

Question 4

FIRE
Inflight

Answer 4

Enter autorotation, close fuel shutoff, fuel pump off, generator off
Mayday call
After landing battery off

Question 5

FIRE
If there's a burning smell

Answer 5

MASTER SW off
After landing battery off

Question 6

HYD
Hydraulic pressure low

Answer 6

If close to spot, land normally, before accumulators depleted

All other situations airspeed 40-60 kts, switch off collective HYD switch, land ASAP

Question 7

MGBP

Answer 7

Pressure below minimum
Reduce power, Land ASAP

Question 8

MGBT

Answer 8

Main gearbox temp above max
Test caution light
If MGBP does not work land ASAP

Question 9

A/F fuel filter

Answer 9

Reduce power

If F FILTER on or not working land ASAP

If F FILTER works but not on continue flight

If Fuel P doesn't work and gauge is zero continue flight below 5000ft

Question 10

Engine oil pressure<1.8bar& NG>85,%

Answer 10

Test warning
If ENG P doesn't work land ASAP
If ENG P works and not on and torque is good land as soon as practicable

Question 11

Engine oil temp above red line

Answer 11

Land if possible, shut down engine check level, check if fan works and intake obstructed
If landing not possible 80kts, reduced power.
If temp not drop land ASAP.

Question 12

Engine surging or low power

Answer 12

Possible malfunctioning bleed valve
If engine surges as power reduced and flag not visible when NG below values on bleed valve table, avoid sudden power changes

Question 13

Fuel pressure gauge<0.4bar

Answer 13

Test warning
If F FILTER is on or not working land ASAP
If works and not on, gauge has failed, continue flight.

Question 14

Fuel pressure gauge at zero

Answer 14

Test warning
If Fuel P on or not working both pumps have failed, descend below 5000ft, continue flight
If Fuel P works & not on gauge has failed, continue flight.

Question 15

Governor failure
Noticable drop or increase in NR or engine surging

Answer 15

NR low NG< 70% low side failure, enter autorotation 65kts, increase NG to 70 with fuel flow control, set NR at 350 with collective, advance NR with fuel flow control to lower green arc 380. Land as soon as practicable.
NR, NG, T4 & torque all high, high side failure, do not lower collective reduce fuel flow so NR is middle of green arc, maintain with collective and fuel control land as soon as practicable

Question 16

Engine surging as power reduced

Answer 16

May be caused by bleed valve not opening at lower collective settings, flag not visible. Adjust collective pitch.
If surging persist and fuel and oil pressure good. Slightly reduce fuel flow to just below governed range land as soon as practicable
Surging still, land ASAP

Question 17

Hydraulic system failure
Seizure or uncommanded movement of cyclic

Answer 17

If control cannot be maintained switch off collective HYD switch, land ASAP
If control can be maintained 40-60kts collective HYD switch off land ASAP.

Question 18

NG indicator failure

Answer 18

Do not exceed torque limits, limit T4 as per chart

Question 19

NR & NF needles do not match in flight

Answer 19

If NR is incorrect maintain trq>10%, use NF
If NF is incorrect use NR,
continue flight

Question 20

Servo transparency

Answer 20

Due to high speed, pitch, gross weight or higher G loads.
Uncommanded right cyclic and down collective.
Allow collective to drop, to releave forces, smoothly counteract right cyclic.