I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 163
FOR SIMULATION USE ONLY ā NOT A TRAINING AID
The TEST MASK position supplies highly pressurized flow to check the face-to-
mask seal.
Oxygen Pressure Regulator BIT Button
The built in test (BIT) button is used to activate the initiated OBOGS BIT (I-BIT) any
time after engine start and the 3 minute warm-up. The I-BIT provides verification
that the OBOGS sensor and OBOGS FAIL warning are operating properly.
Momentarily pushing the BIT button opens a valve in the concentrator, which allows
ambient air into the concentration monitor. Once the oxygen concentration drops
below normal (approximately 20 to 30 seconds), the OBOGS FAIL light should
illuminate.
Once the valve closes and oxygen concentration in the monitor returns to normal,
the OBOGS FAIL warning should extinguish within 2 minutes.
Oxygen Pressure Regulator Flow Indicator
The regulator flow indicator provides a visual indication of oxygen flow through the
regulator. Each breath taken through the regulator activates the flow indicator,
which is displayed for the duration of the flow.
BAGGAGE COMPARTMENT
Up to 80 pounds of baggage may be stowed in the baggage compartment behind the
left avionics bay. The baggage compartment door is a top-hinged door which opens
upward.
A cargo net is installed to secure any objects in the baggage compartment. A flight
bag is secured to the forward bulkhead in the baggage compartment.
The flight bag is designed to accommodate the inlet duct covers, exhaust
cover/prop restraints, pitot tube covers, and the AOA probe cover.
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