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Crew Oxygen Mask
Figure 09---20---3
Flight Crew Operating Manual MASTER
CSP A-
013
Vol. 1
09-
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EMERGENCY EQUIPMENT Oxygen
REV56,Jan 31/03
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Smoke Goggles
Matesto maskcavityto receive continuous venting and canbewornover standardglasses.
Pneumatic Harness Full Face Mask
Mask, goggles andpneumatic harness can bedonnedwith one handandfunctioningin5 seconds.
N/100 Regulator Control
N -
Provides amixture of
ambient air with oxygen.
100 -
Provides 100
Flow Control Knob
oxygen.
Usedto adjust supply pressure.
SmokeGoggles/Full FaceMask <MST>
Figure 09 ---20 ---4
Flight Crew Operating Manual
MASTER
CSP A-
013
EMERGENCY EQUIPMENT Oxygen Vol. 1 09-
20-
8
REV 56, Jan 31/03
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OXY LO PRESS Caution (amber)
Comes ontoindicate that crew oxygen bottle has less than 1410psi.
Check dispatch requirements.
Crew Oxygen System Pressure Readout
Indicates oxygen system pressure in increments of 10psi. Colors are:
Amber -
<1410psi.
Green -
>1410psi.
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Status Page
Crew Oxygen System ---EICAS Indications <MST> Figure 09---20---5
Flight Crew Operating Manual MASTER
CSP A-
013
EMERGENCY EQUIPMENT Vol. 1 09-
20-
9
Oxygen REV 56, Jan 31/03
E. Ground Servicing Panel
The oxygenground servicingpanelis located on the right sideoftheforwardfuselage. The service panelcontains afillport, apressure servicing chartand apressure gauge.
F. Minimum Flight Crew Oxygen Pressure
Table 1defines theminimum oxygensystempressure requiredbefore departure which correspondstothequantity of oxygen necessarytoperformanemergencydecentfrom 41,000feetto10,000feetin 10minutes, followedby110 minutesof cruise at10,000 feet,with normal(N) mask setting(FAR121.333).
TABLE 1
OAT bC --40 --30 --20 --10 0 10 20 30 40 50
bF --40 --22 --4 14 32 50 68 86 104 122
Min. Press (psi) 2Crew 889 938 987 1035 1084 1133 1182 1230 1279 1328
2Crew + Obs 1208 1282 1357 1431 1505 1579 1654 1728 1802 1877
Table 2defines theminimum oxygensystempressure requiredbefore departure which correspondstothequantity of oxygen necessarytoperform anunpressurized continuous cruise at10,000feetfor15 minutes with normal(N)mask setting(JAROPS 1.780).
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