Nh Speed Indicator Auto Relight Functional Check - De Havilland DASH8 100 Series Maintenance Manual

– Audible firing of both ignitors at Engine #1.
(e) On the center console, set the PROP #1 Lever to FUEL OFF and observe the
following:
– No audible firing of both ignitors at Engine #1.
(f) On the ENGINE START panel, set the IGNITION #1 switch to OFF.
(8) Do the operational test procedure for the NH #2 indicator as follows:
(a) On the ENGINE START panel, set the IGNITION #2 switch to AUTO.
(b) On the center console, set the PROP #2 Lever to START FEATHER and
observe the following:
– Audible firing of both ignitors at Engine #2.
(c) On the NH #2 indicator, press and hold the Press To Test Button and observe
the following:
– The NH #2 indicator displays 105%.
– No audible firing of both ignitors at Engine #2.
(d) On the NH #2 indicator, release the Press To Test Button and observe the
following:
– The NH #2 indicator displays 0%.
– Audible firing of both ignitors at Engine #2.
(e) On the center console, set the PROP #2 Lever to FUEL OFF and observe the
following:
– No audible firing of both ignitors at Engine #2.
(f) On the ENGINE START panel, set the IGNITION #2 switch to OFF.
(9) For engine #1, close the following access panels:
ACCESS
Nacelle left side
Nacelle right side
(10) For engine #2, close the following access panels:
ACCESS
Nacelle left side
Nacelle right side
(11) Remove electrical power to aircraft.
B. NH Speed Indicator Auto Relight Functional Check (Post ModSum 8Q100813 Aircraft)
(1) The procedure that follows is for the functional check of the NH Speed Indicator
auto relight system (Aircraft with ModSum 8Q100813). These procedures are
applicable for the left and right engine.
(2) For engine #1, close the following circuit breakers:
MASTER
EFFECTIVITY: See Pageblock 77−12−11 page 201
D
S ERIES 100
AIRCRAFT MAINTENANCE MANUAL
DESIGNATION
415AL
414AR
DESIGNATION
425AL
424AR
77−12−11
Page 205
Jun 20/2005