Service manual

3.3m ELECTRICAL FAILURES (3.27) (Continued)
Dual Alternator Failure (Zero amps both ammeters or ALTERNATOR #l
and #2 INOP lights illuminated - annunciator panel).
NOTE
Anytime total tie bus voltage is below 25 Vdc,
the LOW BUS VOLTAGE annunciator will
illuminate.
Electrical Load ...........................................................REDUCE TO MINIMUM
required for safe flight
ALTR NO. 1 and NO. 2 .................................................................Switches OFF
Circuit Breakers...................................................................CHECK and RESET
as required
ALTR NO. 1 Switch (after OFF at least one second) .....................................ON
ALTR NO. 2 Switch (after OFF at least one second) .....................................ON
If only one alternator resets:
Operating ALTR Switch .................................................................................ON
Failed ALTR Switch .....................................................................................OFF
Electrical Load .......................................................................MAINTAIN LESS
THAN 75 AMPS
Ammeter ............................................................................................MONITOR
If neither alternator resets:
Both ALTR Switches ....................................................................................OFF
Continue flight with reduced electrical load on battery power only.
NOTE
LOW BUS VOLTAGE annunciator will be
illuminated.
Land as soon as practical. Anticipate complete electrical failure. Duration of
battery power available will be dependent on electrical load and battery
condition prior to failure.
NOTE
If the battery is depleted, the landing gear must
be lowered using the emergency extension
procedure. The gear position lights will be
inoperative. The flaps will also be inoperative
and a flaps up landing will be required.
3.3m ELECTRICAL FAILURES (3.27) (Continued)
Dual Alternator Failure (Zero amps both ammeters or ALTERNATOR #l
and #2 INOP lights illuminated - annunciator panel).
NOTE
Anytime total tie bus voltage is below 25 Vdc,
the LOW BUS VOLTAGE annunciator will
illuminate.
Electrical Load ...........................................................REDUCE TO MINIMUM
required for safe flight
ALTR NO. 1 and NO. 2 .................................................................Switches OFF
Circuit Breakers...................................................................CHECK and RESET
as required
ALTR NO. 1 Switch (after OFF at least one second) .....................................ON
ALTR NO. 2 Switch (after OFF at least one second) .....................................ON
If only one alternator resets:
Operating ALTR Switch .................................................................................ON
Failed ALTR Switch .....................................................................................OFF
Electrical Load .......................................................................MAINTAIN LESS
THAN 75 AMPS
Ammeter ............................................................................................MONITOR
If neither alternator resets:
Both ALTR Switches ....................................................................................OFF
Continue flight with reduced electrical load on battery power only.
NOTE
LOW BUS VOLTAGE annunciator will be
illuminated.
Land as soon as practical. Anticipate complete electrical failure. Duration of
battery power available will be dependent on electrical load and battery
condition prior to failure.
NOTE
If the battery is depleted, the landing gear must
be lowered using the emergency extension
procedure. The gear position lights will be
inoperative. The flaps will also be inoperative
and a flaps up landing will be required.
SECTION 3
PA-46-350P, MALIBU EMERG PROCEDURES
SECTION 3
PA-46-350P, MALIBU EMERG PROCEDURES
ISSUED: FEBRUARY 23, 1999 REPORT: VB-1710
REVISED: SEPTEMBER 20, 1999 3-11
ISSUED: FEBRUARY 23, 1999 REPORT: VB-1710
REVISED: SEPTEMBER 20, 1999 3-11
FOR REFERENCE ONLY
NOT FOR FLIGHT