Diamond DA 40, Flight Manual

Page: 113 / 300

DA 40 AFM
Emergency
Procedures
Doc. # 6.01.01-E Rev. 8 01-Dec-2010 Page 3 - 39
3.7.3 SUSPICION OF CARBON MONOXIDE CONTAMINATION IN THE CABIN
Carbon monoxide (CO) is a gas which is developed during the combustion process. It
is poisonous and without smell. Since it occurs however usually together with fuel gases,
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it can be detected. Increased concentration of carbon monoxide in closed spaces can
be fatal. The occurrence of CO in the cabin is possible only due to a defect. If a smell
similar to exhaust gases is noticed in the cabin, the measures in the checklist below should
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be taken:
The DA 40 may be equipped with a CO detector (optional equipment, OÄM 40-253). If
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the visual alert annunciator illuminates in flight, press the TEST/RESET button. If the alert
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continues with the remote light staying ON or a smell similar to exhaust gases is noticed
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in the cabin, the following measures should be taken:
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1. Cabin heat . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
2. Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . open
3. Emergency window(s) . . . . . . . . . . . . . . . . . open
4. Forward canopy . . . . . . . . . . . . . . . . . . . . . . open
CAUTION
In case of suspicion of carbon monoxide contamination in the
cabin, the front canopy may be unlatched during flight. This
allows it to partially open, in order to improve ventilation. The
canopy will remain open in this position. Flight characteristics
will not be affected significantly.
NOTE
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The presence of carbon monoxide is indicated by a visual
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alarm if OÄM 40-253 is carried out.
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END OF CHECKLIST