After switching off the GEN BUS
1 the following message will be
indicated: INV 1, SAS 1 OFF.
NOTE
Following a failure of both Generator Busses the battery will
comntinue to supply the following loads: DAU ch A, EDU
Primary, ICS PLT.
CAUTION
In the event of subsequent Generator 2 failure the flight can be
continued on battery power for maximum of 25 minutes. Land as
soon as possible.
Failure of #2 dc generator and generator bus #1
(Helicopters not equipped with emergency bus)
This failure is indicated by#2DCGEN, BUS TIE caution messages on
EDU 1.
PROCEDURE
GEN 2 : Reset, then ON.
GEN BUS 1 : ON, check.
If failure is confirmed, proceed as follows:
GEN BUS 2 : OFF. All loads of Generator
Bus # 2 are lost. All loads of
Essential Bus #2 are retained.
NOTE
In this event all loads on #1 Bus are maintained by generator 1.
RFM A109E
R.A.I. Approved 3-48A
Rev. 19
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