SECTION 3
EMERGENCY PROCEDURES
SOCATA
MODEL TB 20
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June 30, 1988
Revision 8
3.15
ELECTRICAL FAILURE : IMMEDIATE ACTION
ELECTRICAL EQUIPMENT FAILURE
Check the circuit breakers panel.
If the circuit breaker is open, close it once only.
If it opens again, do not try to close the circuit breaker, the
equipment has failed.
ALTERNATOR FAILURE (Simplified procedure)
”ALTr” warning light
ON
Voltmeter :
– Green sector
CONTINUE FLYING
– Red / yellow sector :
”ALTr FLD” switch–breaker
OFF then ON
”ALTr” warning light
REMAINS ON
”ALTr FLD” switch–breaker
OFF
Air conditioning switch (if installed)
OFF
Non essential electrical load items
OFF
CAUTION
SEE HEREAFTER CHECK–OUT PROCEDURE TO BE
USED FOR NIGHT VFR OR IFR
)
CAUTION
CHECK BATTERY DISCHARGE.
IN THIS CASE, ENDURANCE IS
REDUCED AS ELECTRICAL POWER
IS ONLY SUPPLIED BY BATTERY
Battery approximate duration : 40 min (Night IFR
emergency conditions).
NOTE :
The use of the normal landing gear extension may induce a total electrical
failure. For landing gear extension, first use the emergency system.