ROBINSON
MODEL R44
SECTION 7
SYSTEMS DESCRIPTION
ISSUED: 21 FEB 2014 7-27
CARBON MONOXIDE DETECTOR
The carbon monoxide (CO) detector indicates elevated
cabin CO levels. CO is an odorless, toxic gas present in
engine exhaust which causes headaches, drowsiness, and
possible loss of consciousness. CO levels may become
elevated due to an exhaust leak or exhaust recirculation
during prolonged hovering.
The CO detector system consists of a sensor above
the pilot’s heater outlet and a caution light. A system
check (light flashes twice) is performed each time power
is switched on. A sensor malfunction is indicated by a
continuing flash every four seconds.
If the caution light illuminates, shut off heater and open
nose and door vents as required to ventilate the cabin. If
hovering, land or transition to forward flight. If symptoms
of CO poisoning (headache, drowsiness, dizziness)
accompany caution light, land immediately. Have exhaust
system inspected before next flight.
Many chemicals can damage the CO sensor. Avoid use
of solvents, detergents, or aerosol sprays near the sensor.
Temporarily tape off openings in top and bottom of sensor
housing when cleaning cabin interior.
To Next Page
Loading...
