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least 4% N2 indicated. If the N2 is allowed to drop to 0%, the engine
may thermally seize and may not rotate even at higher airspeeds or
with starter engagement.
NOTE
1. Between 21,000 feet and 10,000 feet, a minimum of 12% N2 is
necessary for a windmill relight.
2. At 10,000 feet and below, a minimum of 10% N2 is necessary for a
windmill relight.
3. Acceleration to VMO is recommended to attain the necessary N2 for
a windmill relight.
4. The altitude loss when accelerating from 240 KIAS to VMO , could be
more than 5,000 feet.
5. A push-over to as steep as 15° nose down may be required.
Windmill relight is feasible:
Yes
(15) Glide airspeed .............................. Increase to VMO
CAUTION
The resulting high rate of descent (up to 7800 fpm) will
cause a significant reduction of available gliding distance.
On airplanes 5301 to 5407:
NOTE
With the ADG deployed, an airspeed of 330 knots is
permitted for 12 minutes, and an airspeed of between 331
to 348 knots is permitted for 4 minutes.
(16) Descent ....................................................... Initiate to 21,000 feet or below, at
VMO.
(17) FUEL, L and R BOOST
PUMP switch/lights..............................Confirm ON
At 21,000 feet and below, attempt to start both engines at the same time.
When ITT is ≤ 90°C and N2 is ≥ 12% (between 21,000 feet and 10,000 feet) or
N2 is ≥ 10% (10,000 feet and below):
(18) IGNITION, CONT switch/light..............Confirm ON
EMERGENCY PROCEDURES
Power Plant
Vol. 1 03−03−5
REV 76, Jul 17/09
▼
CL−604 Operating Manual
PSP 604−6
1. POWER PLANT (CONT'D)
C. Double Engine Failure (Cont’d)
(19) Thrust levers (both) ........................................IDLE
(20) Engine indications ......................................Monitor engine acceleration, ITT and
oil pressure.
At least one engine relights within 25 seconds (stable IDLE within 2 minutes):
Yes
(21) Thrust lever(s)...............................As required
On airplanes 5301 to 5407:
NOTE
Maximum airspeed for continuous operation of the
ADG is 250 knots.
Operating engine(s):
(22) Applicable AC POWER,
GEN switch(es).....................................Check generator(s) set to ON.
Check applicable GEN 1 OFF
and/or GEN 2 OFF caution
message(s) out.
On airplanes 5301 to 5630 NOT incorporating Service Bulletin 604–49–006
or 604–49–009:
(23) AC POWER, APU GEN
switch....................................................Select to OFF.
(24) Applicable
AIR-CONDITIONING,
PACK switch/light(s) .......................... Press in to restart pack(s).
Check applicable PACK OFF
light(s) out.
NOTE
Use only one air-conditioning pack during single
engine operations, unless the APU is the bleed
source.
(25) IGNITION, CONT
switch/light .......................................Press out to select continuous ignition
off.
Check IGNITION A/B advisory
message out.
Re-establish normal power:
(26) ADG, PWR TXFR
OVERRIDE switch.................................Press to override.
EMERGENCY PROCEDURES
Power Plant
Vol. 1 03−03−6
REV 76, Jul 17/09
▼
CL−604 Operating Manual
PSP 604−6
1. POWER PLANT (CONT'D)
C. Double Engine Failure (Cont’d)
(27) CAS messages................................... Review
(28) Affected systems ............................... Restore
Only one engine is operating:
Yes
(29) In-Flight Engine
Failure/Shutdown..................Accomplish Refer to Chapter 5;
ABNORMAL PROCEDURES
– POWER PLANT – In-Flight
Engine Failure/Shutdown.
− END −
No
(29) No further action required.
− END −
No
(21) Thrust levers (both) ..............................SHUT OFF
Another windmill relight attempt is feasible:
Yes
(22) Airspeed.....................................Maintain VMO
(23) Wait 30 seconds, then repeat windmill relight procedure.
No
(22) Proceed to APU bleed air relight.
No
APU bleed air relight is feasible:
Yes
(15) Airspeed ................................... Maintain 240 KIAS minimum.
(16) FUEL, L and R BOOST
PUMP switch/lights..............................Confirm ON
(17) BLEED AIR, 10TH STAGE, L
and R switch/lights...................................Press out to close bleed air valves.
Check L and R 10TH STAGE
CLOSED lights on.
(18) BLEED AIR, APU LCV
switch/light .................................................Press in to open LCV.
　
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