Pilot's Operating Handbook
Section 7
Description
Edition 1 - January 15, 2018
Rev. 5
Page 7.10.3
4 -
a regulator equipped with :
-
a two-position N-100% control tab that selects between a mix of cabin air
and oxygen (NORMAL mode) and 100% oxygen (100% mode),
-
an EMERGENCY rotating knob with a PRESS TO TEST function.
●
NOTE
●
When smoke or fumes are present, the mask can be set to provide positive
pressure to prevent smoke or fumes from infiltrating the mask and to provide
airflow to clear the goggles. Push the N-100 % control tab in towards the mask
to the 100 % position and turn the EMERGENCY control knob to the
EMERGENCY position. After donning the goggles, open the goggle vent on the
bridge of the mask by pulling the slide fully downwards.
●
▲
CAUTION
▲
Use of 100% oxygen and/or the EMERGENCY pressurized breathing
function will significantly decrease oxygen duration.
▲
A flow indicator (blinker) into the oxygen tubing signals the proper flow.
Depending on the specific airplane configuration, refer to the mask manufacturer's
documentation available on the MyTBM.aero website for more information.
Four passenger constant-flow type masks covering the nose and the mouth and
permanently connected, are installed in two containers on the cabin ceiling. The
opening of these containers and the deployment of the masks are controlled:
-
by the pilot, when the OXYGEN switch is set to ON and the PASSENGER
OXYGEN switch is set to DEPLOY,
-
or automatically at a cabin altitude between 13000 and 14000 ft with the
OXYGEN switch set to ON.
Oxygen flow to the passenger masks is obtained when the passenger pulls on the
lanyard to release the connected pin. The green bag on the oxygen mask inflates
when oxygen flow is obtained.
▲
WARNING
▲
Smoking is strictly prohibited when the oxygen system is in use.
Before using oxygen, remove any trace of oil, grease, soap and
other fatty substances (including lipstick, make-up, etc.).
▲
PIM - DO NOT USE FOR FLIGHT OPERATIONS
