Daher TBM 850, Pilot'S Information Manual

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SECTION 7
DESCRIPTION
T B M
850 PILOT’S OPERATING HANDBOOK
Page 7.10.1 Edition 1 -- June 22, 2007
Rev. 13
7.10 -- EMERGENCY OXYGEN SYSTEM
(Figure 7.10.1)
The gaseous oxygen system will be used by the crew and the passengers,
when the cabin altitude is greater than 10000 ft following a loss of
pressurization or in case of cabin air contamination.
Post--MOD70--0407--00D (V15.11 GARMIN software)
The “USE OXYGEN MASK” amber CAS message appears in the GDU
1500 MFD “CAS” window (in normal conditions) and the “USE OXYGEN
MASK / USE OXYGEN MASK” aural warning alert sounds when the red
warning CAS message “CABIN ALTITUDE” is ON.
All
The oxygen reserve is contained in an oxygen cylinder made of composite
material and located outside of the pressurized cabin into the R.H. karman.
Its capacity is 50.3 cu.ft (1425 litres) “STPD” (Standard Temperature
Pressure Dry) and use limit pressures are :
-- maximum pressure 1850 PSIG (127 bars) at 70 ° F (21 ° C).
Evolution of this pressure according to the outside temperature is given in
Section 8, Figure 8.7.4, as well as on a placard on the inside of the cylinder
service door,
-- minimum pressure 217 PSIG (15 bars).
The oxygen cylinder head is equipped with :
-- a hand--controlled isolation valve to permit cylinder installation and
removal,
-- a microswitch causing the ”OXYGEN” CAS message to light on. This
message lights on, when the isolation valve is closed,
-- a graduated pressure gage,
-- a charging valve -- refer to the replenishment procedure in Section 8,
-- an overpressure system consisting of a safety disc. This disc is designed
to rupture between 2500 and 2775 PSIG (172 and 191 bars) discharging
the cylinder contents outboard,
-- a pressure reducing valve adjusting utilization pressure to a value
comprised between 64 and 85 PSIG (4.4 and 5.9 bars),
-- a low pressure safety valve calibrated to 116 PSIG (8 bars).
PIM - DO NOT USE FOR FLIGHT OPERATIONS