Pilatus PC-12 NGX, Pilot'S Information Manual

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3A-9 Engine Dry Motoring
Dry Motoring Run 3A-9-01
Note
This procedure is used to remove internally trapped smoke, fuel and vapor within
the engine gas path. Do a dry motoring cycle once the ITT has stabilized.
Note
A dry motoring run can always be aborted by setting the Master Power switch to
EMERGENCY OFF.
Allow min 30 sec draining period, then:
1. Engine switch.............................. OFF
2. POWER CONTROL LEVER....... IDLE DETENT
3. EPECS MAINTENANCE MODE
switch..........................................
(on maintenance panel, right
sidewall behind co-pilot seat)...... ON
4. CAS window................................ CHECK EPECS MAINT Mode is on
5. BAT 1 and BAT 2 indicators........ CHECK 24 VDC min
6. EXT PWR switch......................... ON (if available)
7. STARTER switch......................... PUSH momentarily (less than 2 seconds)
To crank for a pilot determined amount of
time, hold the push button for longer than
2 seconds
8. CAS window................................ CHECK Dry Motoring comes on
9. Engine......................................... CHECK dry motoring run is performed for
30 seconds
10. EPECS MAINTENANCE MODE
switch..........................................
(on maintenance panel, right
sidewall behind co-pilot seat)...... OFF
11. Engine......................................... If required, do an Engine Start (With or
Without External Power) - 4-5-01
CAUTION
Observe engine starting cycle limits. Refer to Section 2, Limitations,
Power Plant Limitations,
Starter
.
Continued on next page
Section 3A - Abnormal Procedures (EASA Approved)
Engine Dry Motoring
Pilot's Operating Handbook Report No: 02406
Issue date: Mar 06, 2020
Page 3A-9-1
12-C-A15-48-0309-00A-141A-A
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