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Dash 8 Q400 2 > Q400 Limitations Oil, APU, Powerplant > Flashcards

Q400 Limitations Oil, APU, Powerplant Flashcards

1
Q

Oil Pressures General
– Oil Pressure minimum
– Normal operating range
– Transient minimum

A

44 psi
61 to 72 psi
44 to 61 psi

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2
Q

Temperature for Start
– Minimum oil temperature for start up
– Minimum oil temperature above FLT IDLE

A

-40°C

0°C

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3
Q

Temperature at Ground Idle
– Minimum Oil Temperature
– Maximum Oil Temperature
– Maximum Oil Temp PLA between Disc and FLT IDLE

A

-40°C
107°C
125°C

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4
Q

Temperature Above Ground Idle
– Minimum Oil Temperature
– Maximum Oil Temperature
– Max. Continuous Oil Temperature

A

0°C (55° C for take-off in icing conditions)
107°C
107°C

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5
Q

Temperature for Icing:
Minimum oil temperature required to ensure engine air inlet ice protection, prior to
take-off, is

A

55°C

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6
Q

Minimum oil temperature required to ensure engine air inlet ice protection, in flight
and within 3 minutes of setting take-off power, is

A

65°C
NOTE: To maintain the minimum oil temperature of 65°C during descent,
holding and approach, in icing conditions, it may be necessary to increase
power. The increase in engine power will be limited by the allowable
maximum airspeed appropriate to VMO, VLO, VFE, aircraft system
malfunctions, turbulence and ATC instructions.

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7
Q

APU Limitations

A
  1. APU is approved for GROUND OPERATIONS ONLY.
  2. APU must be shutdown prior to take-off.
  3. APU must not be operated unattended with passengers onboard.
  4. APU must not be operated unattended during pressure refuelling.
  5. APU must not be operated during gravity refuelling.
  6. APU ambient temperature (lower) -35°C APU ambient temperature (upper) +50°C or ISA +35°C, whichever is lower.
    NOTE: With APU inlet louvres installed, APU operation is limited to +21°C maximum ambient temperature.
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8
Q

APU Starter Cranking Limits
NOTE: If the APU does not start in the third attempt, maintenance action is
required.

A

START MAX TIME ON… FOLLOWED BY…

  1. 60 secs 2 mins off
  2. 60 secs 2 mins off
  3. 60 secs 30 mins off
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9
Q

Propeller
– Manufacturer
– Model

A

Dowty Aerospace

R408

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10
Q

Powerplant
– Manufacturer:
– Model:
– Ambient temperature limitations:

A

Pratt & Whitney
PW 150A
-54°C to +50°C or ISA + 35°C
Whichever is lower

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11
Q

– With Bypass Doors Open, take-off, landing and setting MTOP and MCP are limited to (temp)

A

ISA + 25°C

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12
Q

– Maximum Altitude for Airstart

A

20,000 ft

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13
Q

– Automatic Take-Off Power Uptrim

A

10% torque (nominal)

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14
Q

Power Plant Limitations

Max. Take-off (MTOP) % The maximum take-off rating is limited to 5 minutes.

A

106%

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15
Q

Power Plant Limitations
Max. Take-off (MTOP)
Max ITT

A

880°C

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16
Q

Power Plant Limitations
Max. Take-off (MTOP)
Max NL% RPM

A

100%

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17
Q

Power Plant Limitations
Max. Take-off (MTOP)
Max NH% RPM

A

100%

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18
Q

Power Plant Limitations
Max. Take-off (MTOP)
Max NP RPM

A

1020

Maximum allowable continuous NP overspeed is 1071 rpm.

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19
Q

Power Plant Limitations
Max. Take-off (MTOP)
Oil Pressure PSID

A

61 - 72

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20
Q

Power Plant Limitations
Max. Take-off (MTOP)
Oil Temp °C

A

0 - 107

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21
Q

Power Plant Limitations
Normal Take-off (NTOP)
Max Torque

A

90.3%

NTOP torque indication will be 90% or 91%.

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22
Q

Power Plant Limitations
Normal Take-off (NTOP)
Max ITT

A

The Normal Take-off ITT limit for a given ambient air temperature is given
in “Variation of ITT with Ambient Air Temperature for NTOP” below.

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23
Q

Power Plant Limitations
Normal Take-off (NTOP)
Max NL% RPM

A

The Normal Take-off NH and NL limit for a given ambient air temperature
is given in “Variation of NH and NL with Ambient Air Temperature for NTOP.

24
Q

Power Plant Limitations
Normal Take-off (NTOP)
Max NH% RPM

A

The Normal Take-off NH and NL limit for a given ambient air temperature
is given in “Variation of NH and NL with Ambient Air Temperature for NTOP.

25
Q

Power Plant Limitations
Normal Take-off (NTOP)
Max NP RPM

A

1020

Maximum allowable continuous NP overspeed is 1071 rpm.

26
Q

Power Plant Limitations
Normal Take-off (NTOP)
Oil Pressure PSID

A

61 - 72

27
Q

Power Plant Limitations
Normal Take-off (NTOP)
Oil Temp °C

A

0 - 107

28
Q

Power Plant Limitations
Max Continuous (MCP)
Max Torque %

A

100%

29
Q

Power Plant Limitations
Max Continuous (MCP)
Max ITT

A

880°C

30
Q

Power Plant Limitations
Max Continuous (MCP)
Max NL% RPM

A

100%

31
Q

Power Plant Limitations
Max Continuous (MCP)
Max NH% RPM

A

100%

32
Q

Power Plant Limitations
Max Continuous (MCP)
Max NP RPM

A

1020

Maximum allowable continuous NP overspeed is 1071 rpm.

33
Q

Power Plant Limitations
Max Continuous (MCP)
Oil Pressure PSID

A

61 - 72

34
Q

Power Plant Limitations
Max Continuous (MCP)
Oil Temp °C

A

0 - 107

35
Q

Power Plant Limitations
Starting
Max. ITT °C and time

A

920

20 seconds maximum.

36
Q

Power Plant Limitations
Starting
Oil Pressure PSID max, at discing with OAT below _•

A

100 max.

165 Maximum oil pressure at discing with OAT below 0°C.

37
Q

Power Plant Limitations
Starting
Oil Temp °C

A
  • 40° minimum
38
Q

Power Plant Limitations
Transient (20 seconds maximum.)
Max Torque

A

135%

39
Q

Power Plant Limitations
Transient (20 seconds maximum.)
Max ITT

A

920°C

40
Q

Power Plant Limitations
Transient (20 seconds maximum.)
Max NL% RPM

A

102.3%

41
Q

Power Plant Limitations
Transient (20 seconds maximum.)
Max NH% RPM

A

101.2%

42
Q

Power Plant Limitations
Transient (20 seconds maximum.)
Max NP RPM

A

1173

43
Q

Power Plant Limitations
Transient (20 seconds maximum.)
Oil Pressure PSID (lower/upper)

A

44 - 61

72 - 100

44
Q

Power Plant Limitations
Transient
Oil Temp °C and max time for torque values above_and less than_

A

125° Max.
5 seconds maximum for torque values above flight idle and less than
55%.

45
Q

Power Plant Limitations
Max. Reverse
Max Torque

A

35%

46
Q

Power Plant Limitations
Max. Reverse
Max ITT

A

880°C

47
Q

Power Plant Limitations
Max. Reverse
Max NL% RPM

A

100%

48
Q

Power Plant Limitations
Max. Reverse
Max NH% RPM

A

100%

49
Q

Power Plant Limitations
Max. Reverse
Max NP RPM

A

1020

50
Q

Power Plant Limitations
Max. Reverse
Oil Pressure PSID

A

61 - 72

51
Q

Power Plant Limitations
Max. Reverse
Oil Temp °C

A

0 - 107

52
Q

Starter Cranking Limits

A

START MAX TIME ON FOLLOWED BY
1 70 seconds 2 minutes off
2 70 seconds 2 minutes off
3 70 seconds 30 minutes off

53
Q

Engine and Propeller Ground Operating Limitations
– Maximum torque is
– Minimum NH is
– Maximum wind speed for ground operation, with the nose of the airplane more than _* out of the wind is

A

100%
64.2%
30°, 50 kts

54
Q

Engine Airborne Operation Limitations
– In-flight operation of the POWER levers aft of the FLIGHT IDLE gate is
– Minimum SAT for engine relight is.

A

prohibited.

-40°C

55
Q

Engine and Propeller Ground Operating Limitations
For wind speed greater than 8 kts, with the nose of the airplane more than 30° out of wind, the maximum power for ground maneuvering is as follows: ground maneuvering
NOTE: Ground operations in winds greater than 50 kts must be recorded
and the maximum wind speed provided to maintenance within 24 hours (flying day)

A

WIND SPEED
MAXIMUM POWER SETTING
(GROUND MANEUVERING)
9 to 20 kts FLIGHT IDLE
(Power levers may be momentarily increased above flight idle for acceleration)
21 to 35 kts FLIGHT IDLE
36 to 50 kts FLIGHT IDLE
(Power levers must be at DISC with airplane static)

56
Q

Engine and Propeller Ground Operating Limitations
For wind speed greater than 8 kts, with the nose of the airplane more than 30° out of wind, the maximum power for ground maneuvering is as follows: static
NOTE: Ground operations in winds greater than 50 kts must be recorded
and the maximum wind speed provided to maintenance within 24 hours (flying day)

A

WIND SPEED
MAXIMUM POWER SETTING
(GROUND STATIC OPERATION)
9 to 20 kts. Pwr levers angle at 60°
(approximately midway between FLIGHT IDLE and Take-off power detent)
21 to 35 kts FLIGHT IDLE
36 to 50 kts(gusts to 55kts) DISC

Dash 8 Q400 2 (16 decks)

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