UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
May 14/14
Page 1-50
L.
PFD Cooling Fan CAS Alert
(1)
Pull PFD FAN (CB155) circuit breaker.
(2)
Verify
that
the
PFD FAN
CAS alert and the
MASTER CAUTION
annunciator
is flashing.
(3)
Verify an audible ping is heard in the crew headset.
(4)
Acknowledge by pressing the
MASTER CAUTION
annunciator/ switch.
(5)
Verify
the
MASTER CAUTION
annunciator is extinguished and
PFD FAN
CAS alert is steady on.
(6)
Push in PFD FAN (CB155) circuit breaker.
(7)
Verify
the
PFD FAN
CAS alert is extinguished.
M. MFD Cooling Fan CAS Alert
(1)
Pull MFD FAN (CB156) circuit breaker.
(2)
Verify that the
MFD FAN
CAS alert and the
MASTER CAUTION
annunciator
is flashing.
(3)
Verify an audible ping is heard in the crew headset.
(4)
Acknowledge by pressing the
MASTER CAUTION
annunciator/ switch.
(5)
Verify
the
MASTER CAUTION
annunciator is extinguished and
MFD FAN
CAS alert is steady on.
(6)
Push in MFD FAN (CB156) circuit breaker.
(7)
Verify
the
MFD FAN
CAS alert is extinguished.
N. Avionics Cooling Fan CAS Alert
(1)
Pull IAU 2 (CB149) circuit breaker.
(2)
Pull AVIONIC CF (CB154) circuit breaker.
(3)
Verify
that
the
AVI FAN FAIL
CAS alert and the
MASTER CAUTION
annunciator is flashing.
(4)
Verify an audible ping is heard in the crew headset.
(5)
Acknowledge by pressing the
MASTER CAUTION
annunciator/ switch.
Visit www.enstromhelicopter.com for instructions to order an original manual and to register for email notification of updates.