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Published byErnest Watkins Modified over 8 years ago
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Handling Broken Glass G1000 Malfunctions
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While debilitating failures are rare… Redundancy –2 Displays –2 Avionics –2 GPS
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Malfunctions Require More Thought Failsafe modes –COM retains last used NAV/COM Freqs –COM #1 bypasses Audio Panel –Fails to 121.5 –Alternator failure Annunciator –Vacuum pump failure annunciator –Auto/Manual Standby Battery –Auto/Manual Load Shedding –Essential bus (no flaps or xponder) –Auto Pilot “rate” back-up” ROLL Mode Use of traditional backup instruments
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More reference to the POH Emergency Check list and… Awareness and use of the KOEL
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POH Page 2-9
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To determine if A/C airworthy Observed discrepancy during preflight check POH KOEL List.
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Training Aids King G1000 Training Program –Three segments on malfunctions G1000 Simulator CD –You can fail selected LRUs Cessna PowerPoint CD –Several segments on malfunctions And… lots of information on the web…
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http://do.nmcap.org/g1000/
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POH Failure Checklist Items
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Affect of AHRS Sensor Input
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Reversionary Mode PFD failure – NAV1, COM1 & GPS1 lost MFD failure – NAV2, COM2 & GPS2 lost
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FailureKAP-140GFC-700NAV/COMNotes PFD Display MFD Display AHRS ADC AHRS & ADC Magnetometer GPS Audio Panel Failure Modes Matrix Complete the following matrix
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FailureKAP-140GFC-700NAV/COMNotes PFD Display OK Loss of AP and FD NAV/Com 1 Lost Auto Switch to Reversion MFD Display ROL, VS, ALT only OK NAV/Com 2 Lost Auto Switch to Reversion AHRS Reverts to ROL Mode Ref SBY AI & MC ADC No Alt Preselect & Alert Loss of AP and FD PIT Mode Ref SBY AS & Altimeter AHRS & ADC ROL, VS, ALT Hold mode only Loss of AP and FD Full ILS OK Ref SBY AS & Altimeter Magnetometer Reverts to ROL mode Loss of HDG Mode Ref to Mag Compass GPS Ded-Reckoning Mode—Uses last known position AS & HDG Audio Panel Use Prohibited COM1 Only Direct connect to COM 1 no Intercom Failure Modes Matrix
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Questions?
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