12.26.10(b) . lack of alternator/generator charge; THIS IS A REPEAT

12.26.10(a) . excessive alternator/generator charge rate; 

See 12.26.8(a)

12.26.10. State the actions available to the pilot to deal with:

12.26.8(c) . blown fuse or popped circuit breaker. 

Indications
– circuit breaker will “pop” , fuse will “blow”
– suspect an electrical overload as the cause and proceed with caution
Actions
– if no smell / sign of burning the circuit breaker can be re-set
– after a wait of about 1-2 minutes push it back in.
– if it pops a second time do not reset it
– avoid an electrical fire by replacing the correct amperage of blown fuse

12.26.8(b) . lack of alternator/generator charge; 

Indications
Insufficient current to charge the battery will show a constant negative reading on a centre-zero ammeter and a zero reading on a left zero ammeter.

Actions
– in a alternator equipped aircraft, cycle the alternator switch to reset the alternator. If this doesnt work after a couple of tries them shut down the alternator and reduce the electrical load.
Insufficient current – switch off unnecessary or non essential electrical equipment

12.26.8(a) . excessive alternator/generator charge rate; 

Indications
Too much current – ammeter indicates an abnormally high positive charge rate

Actions
– battery could overheat and cause a hazard
– if battery is fully charged the pilot can cycle the alternator switch to OFF then back to ON after about 2 seconds to check if the over voltage warning was just a transitory spike.
– if the over voltage continues, shut down the alternator, reduce power usage and land as soon as possible.

12.26.8. Identify the cockpit indications of the following electrical system malfunctions:

12.26.6(g) . switching the battery master switch off before leaving the aircraft. 

– leaving the battery master switch on can drain the battery overnight
– alternator field circuit draws current even if no other switches are on.

12.26.6(f) . switching off ancillary equipment before shut-down; 

– will prevent possible large fluctuations in voltage during shut down from damaging sensitive electronic circuits.
-also a useful precaution which helps ensure that equipment is turned off for start.

12.26.6(e) . checking satisfactory operation of the system after start, and monitoring  during flight; 

– after start-up – the alternator . generator is working satisfactorily if there is an appropriate high charge indicated by the ammeter
– when the battery is fully charged and the alternator is operating the ammeter should show a centre zero reading(centre reading ammeter)
– when the battery is fully charged a left zero ammeter will show a current draw appropriate to the services being used.
– as extra circuits are switched on the ammeter reading may show a slight increase in charge

– during flight
– monitor the ammeter and voltmeter
– some slight fluctuation in the indication is normal
– a large continuous deflection in one direction indicates a malfunction