Presentation on theme: "Installed Oxygen System"— Presentation transcript:
1 Installed Oxygen System System descriptionLimitationsNormal ProceduresEmergency Procedures
2 Oxygen System 77 Cubic foot tank installed in the aft tail section Service through the baggage compartment.O2 line is plumbed above the headliner to the distribution manifoldControl panel/annunciator panel is mounted on center console just left of the flap leverMaster switchFault annunciationQuantity indication (tank pressure)Distribution quantity indication (pressure to distribution manifold)
3 Oxygen LimitationsCannulas are certified up to FL180 as per FAR part 23. Oxygen masks are required above FL180FAR requires the use of O2 below the aircraft maximum certified altitude.Above12,500 MSL for more the 30 minutes or,Anytime above 14,000 MSLMake available for passengers above 15,000 MSLNote:The O2 Required light will illuminate when the aircraft has reached a pressure altitude of 12,000 feet and the system is off
4 Duration Table Based on a 77 cu ft tank Residual oxygen below FL200 is not factored into duration tableIncludes additional 5% safety marginWhat is the oxygen duration for a flight at FL190 with 2 persons aboard? See speaker notes for answerApproximately 6 hours and 30 minutes.
5 Normal Procedures Before Starting Engine Climb Brief passengers on the use of O2Make sure masks/cannulas are readily available in-flightClimbDon masks/cannulas prior to reaching altitudes that require O2Oxygen System OnFlowmeter adjust for final cruise altitude or to maintain O2 saturation levels above 90% when using a pulse oximeter
6 Normal Procedures Cruise Descent Oxygen quantity check every 20 minutesOxygen pressure check every 20 minutesOxygen saturation level check every 20 minutesDescentOxygen off after descending through altitudes that do not require the use of oxygenStow mask/cannulas
7 Emergency Procedures Cabin Fire and Smoke/Fume Elimination Use of O2 during a cabin fire can pose a serious threat.Turn O2 off and descend to an altitude that does not require the use of oxygenPilot must use good judgment and weigh the risks between use of O2 during a cabin fire and the affects of hypoxiaOxygen System MalfunctionCheck flow meters for flowDescent below 10,000MSL or MSAO2 system off
8 Emergency Procedures Steady Fault Light Flashing Fault Light Indicates a wiring problem and the system is disabledCycle Oxygen / Cabin Lights C/BFlashing Fault LightIndicates oxygen pressure fault to the distribution manifold.Descend to an altitude where oxygen is not required
9 Time of Useful Consciousness Symptoms of HypoxiaTreat hypoxia with 100% oxygen.It is a possible emergency if no oxygen is available and you are hypoxic.Declare emergencyExecute an immediate emergency descent to 10,000 or MSA whichever appropriate.Note: the useful consciousness time from 18,000 to 25,000Time of Useful ConsciousnessFL18020-30 minutesFL2208-10 minutesFL2503-5 minutesFL3001-2 minutesFL35030-60 secondsFL4309-12 secondsFL500 and above
10 Pulse Oximeter Measures blood oxygen saturation level. Increase the flow of O2 if saturation levels drop below 90%Descent to a lower altitude if saturation levels can not be kept above 90%
11 ScenarioWhile using a cannula at 17,500MSL, you engage in an interesting conversation with your passengers. Shortly after, you experience shortness of breath and notice minor cyanosis in your finger tips. Oxygen flow is adequate.What is the problem?See speaker notes for the answerThe source of oxygen while using a cannula is through the nose. While talking or eating most likely you are breathing through you mouth and the oxygen available in not reaching your lungs. Stop talking for a while and start breathing through your nose.