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Checklist for abnormal ops using Z-13/8

 
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airlincoln(at)sbcglobal.n
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PostPosted: Tue Nov 23, 2010 5:08 pm    Post subject: Checklist for abnormal ops using Z-13/8 Reply with quote
I'm roughing out a draft for two abnormal electrical systems checklists for Z-13/8 using B&C's LR-3C regulator and a PC-680 battery. I'm sure someone has trod this ground already -- here's my first draft -- any comments or suggestions?

LOW VOLTAGE LIGHT FLASHING
1. E-BUS ALT FEED switch – ON
2. AUX ALT switch – ON
3.   If LOW VOLT light extinguishes / not flashing:
3A. DC POWER MASTER switch—OFF
3B. Verify ENDURANCE BUS voltage > 13.0
3C. Continue to destination -- monitor E-BUS voltage
3D. On final approach – DC POWER MASTER switch—ON
4. If LOW VOLT light continues flashing:
  4A. Hack clock / note time
4B. DC POWER MASTER switch – OFF
4C. Transponder -- 7700
4D. Land at nearest suitable airport (within 60 minutes)
  4E. On final approach – DC POWER MASTER switch—ON
-------------------------------------------------------------------------------------
5. Once on the ground & parked, begin troubleshooting
6. If ALT FLD circuit breaker is open/tripped (overvoltage):
6A. Reset CB and run engine -- note primary alternator field voltage using test probe
6B. Refer to AEC Page Z-8 for troubleshooting guidance



ELECTRICAL SMOKE / FIRE


1. E-BUS ALT FEED switch – ON
2.  DC POWER MASTER switch – OFF
3. Cabin heat – OFF
4. Eyeball vents (both) – FULL OPEN
5. Transponder -- 7700
6. Hack clock / note time
7. If smoke/fire diminishes/extinguishes:
7A. Land at nearest suitable airport (within 60 minutes)
8. If smoke/fire continues:
8A. Obtain VMC
8B. E-BUS ALT FEED switch – OFF   8C. Land immediately
[quote][b]

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email(at)jaredyates.com
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PostPosted: Wed Nov 24, 2010 5:19 am    Post subject: Checklist for abnormal ops using Z-13/8 Reply with quote
Have you considered turning everything off in the event of electrical smoke instead of switching to ebus mode?  My inclination would be something more like this:

1: all electrical switches off
2: if smoke persists, open windows and vents and land as soon as possible, off airport if necessary.
3: if smoke ceases, consider landing as soon as possible on an airport, or if operationally necessary (IMC etc), energize ebus to see if smoke returns
4: if smoke returns, complete steps one and two above and stop checklist
5: if smoke does not return, continue to nearest airport.
6: if workload permits, declare an emergency and use hand-held backup radio to alert SAR resources


On Tue, Nov 23, 2010 at 8:04 PM, Lincoln Keill <airlincoln(at)sbcglobal.net (airlincoln(at)sbcglobal.net)> wrote:
[quote] I'm roughing out a draft for two abnormal electrical systems checklists for Z-13/8 using B&C's LR-3C regulator and a PC-680 battery.  I'm sure someone has trod this ground already -- here's my first draft -- any comments or suggestions?

LOW VOLTAGE LIGHT FLASHING
1.   E-BUS ALT FEED switch – ON
2.   AUX ALT switch – ON
3.   If LOW VOLT light extinguishes / not flashing:
   3A.  DC POWER MASTER switch—OFF
   3B.  Verify ENDURANCE BUS voltage > 13.0
   3C.  Continue to destination -- monitor E-BUS voltage
   3D.  On final approach – DC POWER MASTER switch—ON
4.   If LOW VOLT light continues flashing:
   4A.  Hack clock / note time
   4B.   DC POWER MASTER switch – OFF
   4C.  Transponder -- 7700
   4D.   Land at nearest suitable airport (within 60 minutes)
   4E.  On final approach – DC POWER MASTER switch—ON
-------------------------------------------------------------------------------------
5.   Once on the ground & parked, begin troubleshooting
6.   If ALT FLD circuit breaker is open/tripped (overvoltage):
   6A.  Reset CB and run engine -- note primary alternator field voltage using test probe
   6B.  Refer to AEC Page Z-8 for troubleshooting guidance
 


ELECTRICAL SMOKE / FIRE


1.  E-BUS ALT FEED switch – ON
2.  DC POWER MASTER switch – OFF
3.  Cabin heat – OFF
4.  Eyeball vents (both) – FULL OPEN
5.  Transponder -- 7700
6.  Hack clock / note time
7.  If smoke/fire diminishes/extinguishes:
7A. Land at nearest suitable airport (within 60 minutes)
8.  If smoke/fire continues:
8A.  Obtain VMC
8B.  E-BUS ALT FEED switch – OFF            8C.  Land immediately
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