Emergency Procedures Warning Lights Flashcards
Fuel Low (Yellow) “Fuel level Low” light
Approx 35lbs of fuel (22.5lb useable) left.
Never use the fuel level low light as a working indication of fuel quantity.
Avoid large steady side slip angles and uncoordinated maneuvers.
LAND AS SOON AS POSSIBLE
Fuel Filter (Yellow) “Fuel Filter” light
A predetermined pressure differential across the filter has been reached and an impending bypass condition exists.
⚫️Turn on start pump
⚫️Continue flight
If any possible engine indications or conditions occur, land as soon as possible.
Service the fuel filter prior to the next flight.
Battery Over temperature [Red] Bat Temp 160
When red indicator on, means battery is at 160F or above
Battery Switch off
Land as soon as possible
No further flights are authorized until battery is inspected and the cause of over temp is corrected
Engine Chip Detector [Yellow] Engine Chips
Yellow engine chips indicator on when there is metal contamination of oil
Land as soon as possible
Tail rotor transmission chip detector [Yellow] T/R xsmn chips
Yellow T/R Xmsn chips on, metal contamination of oil
Land as soon as possible
Main rotor transmission oil pressure [Red]
XMSN Oil Press
Red XSMN OIL PRESS indicator on
Transmission oil pressure low
Land as soon as possible
Main rotor transmission oil temp [Red] XMSN OIL TEMP
Red “XMSN OIL TEMP” indicator on. Transmission oil temperature exceeds maximum limit.
Land as soon as possible
Engine air particle separator filter clogged [Yellow] Air filter clogged
Certain flight conditions may cause the yellow caution indicator to flicker momentarily. The filter bypass door should be opened only when a steady illumination of the caution indicator is five seconds or more.
Condition: a predetermined pressure differential has been reached across the engine air inlet.
Procedures:
Filter bypass control handle - open
Scav air off
Service particle separator prior to next flight
Low rotor speed [Red] Engine out
Red “Engine Out” warning indicator ON and audible warning in headset. Drop in rotor RPM. Change in noise level. Note: the low rotor warning is activated when NR falls below 468.
Low rotor RPM will most commonly be associated with the following:
Engine failure, transient rotor droop during large rapid increases in power, governor failure producing an under speed.
Procedures:
Respond immediately to the low rotor RPM warning by adjusting collective to maintain rotor RPM within limits.
Check other caution/warning indicators and engine instruments to confirm engine trouble and respond in accordance with appropriate procedures.
Engine failure, complete power loss Auto Guide [Red] Engine Out
-After confirming complete power loss, time and altitude permitting, place twist trip in cutoff and close fuel shutoff valve
-Select landing area and maneuver as required
-If operating at reduced rotor rpm to extend glide or reduce rate of descent, restore rpm by lowering collective prior to flare out
-Flare as required for the terrain to reduce forward speed and rate of descent. Level aircraft before ground contact
-Touch down in a level attitude, increasing collecting pitch to cushion landing
-Avoid the use of aft cycle or rapid lowering of the collective pitch during initial ground contact or any subsequent ground slide.
Max glide is 80KIAS and 410Nr
Engine failure, complete power loss [Red] Engine Out
Red engine out warning indicator ON and audible warning in headset. Left yaw, drop in engine speed, drop in rotor speed, change in noise level.
When n1 falls below 55% or nr falls below 468 (98 +/- 1 n2)
Procedures when in cruise at 500ft AGL or above
-Adjust collective pitch according to altitude and airspeed to maintain rotor speed between 410 & 523 rpm
-Adjust pedal pressure as necessary to control aircraft yaw
-Adjust cycle control as necessary to control airspeed and flight path
-Allow airspeed to stabilize at 130 KIAS or lower
Generator Malfunction Yellow [Gen Out]
Gen out indicator on and ammeter indicating 0. Gen switch tripped to off.
Check generator circuit breaker in and return generator switch to ON if tripped off
Turn the generator switch off then on to reset
If Gen out indicator remains on or comes back on, pull the generator circuit breaker out and ensure the switch is in position for remainder of the flight
If Gen out indicator remains on, reduce electrical load to a minimum
Land as soon as practical
Main rotor transmission chip detector [Yellow] M/R XMSN CHIPS
Metal contamination of oil
Land as soon as possible
Battery Over temperature [Yellow] Bat Temp 140F
Battery temp over 140F
Battery switch off
Battery must remain offline during remainder of flight
The battery temp 140F light will go out after the battery has cooled below 140F. No further flights are authorized until battery is inspected and cause of over temp corrected.
