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Engine Run Class > Engine Run > Flashcards

Engine Run Flashcards

1
Q

Indication of uncommanded/auto acceleration

A

RPM advances above 31% before Idle

FTIT increases

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2
Q

Shutdown procedures for uncommanded/ auto acceleration

A

THRO- OFF
ENG CONT - SEC
FUEL MASTER - OFF
ENG FEED- OFF

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3
Q

Characteristics to a hot start?

A

FTIT is above 935C on start

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4
Q

Indications to anticipate a hot start

A
  • FTIT increases rapidly through 750C, while ENG RPM is below 40%
  • rate of ENG RPM increase drops-off sharply, while ENG RPM is below 40%
  • ENG RPM begins to decrease following JFS cutout
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5
Q

Shutdown procedures for a hotstart

A
  • THRO OFF
  • Monitor FTIT
  • If FTIT remains above 500C, motor engine with JFS until is below 200C, not to exceed 4 min
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6
Q

Characteristics of a hung start

A

Eng RPM has stopped increases below IDLE, FTIT stabilized below 935C

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7
Q

Shutdown procedures for a hung start

A
  • THRO OFF

- Motor engine for 20 sec if JFS start 1 was attempted, 1 min for JFS start 2

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8
Q

Characteristics of a No Start

A

Engine light-off does not occur within 10 sec of throttle in idle(15 sec for after main fuel system)

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9
Q

Shutdown procedures for a No Star

A
  • THRO OFF

- Motor engine for 20 sec if JFS start 1 was attempted, 1 min for JFS start 2

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10
Q

Nonrecoverable stalls are called

A

stagnations

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11
Q

stagnations are characterized by

A
  • Rising FTIT and decreasing RPM
  • Rising FTIT and RPM less than 62%
  • Lack of response to throttle movement
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12
Q

Recovery from stall or stagnation.

If a stall occurs______ and if stall clears______.

A

SNAP throttle to IDLE, stabalize for 5min idle run and shutdown engine

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13
Q

If a stall does not clear, it is a________________.

A

Stagnation

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14
Q

Shutdown procedures for a stagnation.

A

Retard throttle to OFF and monitor FTIT.

If FTIT remains above 500C, motor engine with JFS until is below 200C. Not to exceed 4 min.

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15
Q

If a hydrazine leak is detected during engine run.

A
  1. nonpersonnel clears the area.
  2. shutdown engine.
  3. abandon acft and clear the area.
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16
Q

If acft jumps chocks.

A

SNAP throttle to IDLE. Apply max toe braking.

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17
Q

If acft jumps chocks. And brakes fail.

A

Make sure PARKING BRAKE is selected. select CHANNEL 2, and re-apply max toe braking.

18
Q

If acft jumps chocks. And brakes fail. And engine does not respond to throttle reduction.

A

THRO OFF - FUEL MASTER OFF - ENGINE FEED OFF.

19
Q

If an engine fire occurs and an internal oil leak is suspected,______________.

A

do not attempt to motor engine since oil pumped from within will feed fire.

20
Q

If fire pesists after shutdown and is contained within engine or engine inlet area,_____(_____)and__________.

A

cover inlet(only if run screed is not installed) and discharge fire ertinguishing agent into engine exhaust to extinguish fire.

21
Q

If fire is in fuselage area,________________.

A

do not motor engine. Motoring may supply added fuel.

22
Q

If fire is isolated to engine exhaust,____________________.

A

motor engine in an attempt to blow out fire.

23
Q

Allow JFS after fire to_______(_____).

A

burn itself out(about 1 min).

24
Q

If fire is witin JFS, do not__________unless____________.

A

dicharge extinguishing agents into JFS inlet unless fire is self sustaining or spreading into acft.

25
Q

Engine shall not be operated above _____% RPM with acft unrestrained.

A

85%

26
Q

If JFS run light does not come on within _______ after star ignition, position__________.

A

30 seconds, JFS switch to OFF

27
Q

Wait at least________ prior to reattempting a JFS start to allow_____________.

A

1min, fuel drainage from JFS combustor.

28
Q

Motoring of JFS for greater than______
and not to exceed ________ requires
________________________. However,___________.

A

1min, 4min, 20min of cooling for each minute of motoring. normal engine start may be initiated after.

29
Q

Motoring of JFS in a 1 hour period is limited to______ consecutive motoring runs,_______ or less duration each, provided______of cooling period is observed between motoring.

A

10, 1min, 5min.

30
Q

After an emergency shutdown
,_________ and _____________
before attempting another start.

A

rotate fan blades by hand, motor core using a motoring tool.

31
Q

Engine light off is indicated by_______ _________ and an increase in ________ followed by a rise in ______. Engine light off should occur within ________ after advancing the throttle to idle. If maintenance was performed on the main fuel system, light off should occur within_______.

A

ignition, vibration, RPM, FTIT. 10seconds, 15 seconds.

32
Q

Engine vibration/rumble should disappear when throttle is advanced slightly(up to_______)

A

5%

33
Q

HYD/OIL PRESS warning light shall go out by the time oil press reaches______

A

20psi

34
Q

HYD/OIL PRESS warning light shall not go out prior to _________% RPM. If warning light is still on at idle, _______________.

A

15%, then bump it up to 80, and back to idle, and see if it goes out

35
Q

At intermediate power, the engine oil pressure must increase_______psid above it idle setting.

A

10psid

36
Q

The nozzles must close to______% within______seconds of placing the ENG CONT switch to SEC.

A

less than 10%, 30 sec.

37
Q

Do not shut off main power until RPM has decreased to below____%.

A

20%

38
Q 
PARAMETERS: IDLE
FUEL FLOW:
OIL:
NOZ:
RPM:
FTIT:
HYD:
A 
PARAMETERS: IDLE
FUEL FLOW: 700-1700
OIL: 15-35 psid
NOZ: 94 - 106%
RPM: 62 - 80%
FTIT: below 650C
HYD: 2850 - 3250 psig
39
Q 
PARAMETERS: INT(MIL)
FUEL FLOW: 
OIL: 
NOZ: 
RPM: 
FTIT: 
HYD:
A 
PARAMETERS: INT(MIL)
FUEL FLOW: NO SET READING
OIL: 35-65 psid
NOZ: -3 TO 10%
RPM: 106%MAX
FTIT: 935C MAX
HYD: 2850 - 3250 psig
40
Q 
PARAMETERS: MIN AUG
FUEL FLOW:
OIL: 
NOZ: 
RPM:
FTIT:
HYD:
A 
PARAMETERS: MIN AUG
FUEL FLOW: NO SET READING
OIL: 35-65 psid
NOZ: -5 TO 40%
RPM: 106%MAX
FTIT: 935C MAX
HYD: 2850 - 3250 psig
41
Q 
PARAMETERS: MAX AUG
FUEL FLOW:
OIL: 
NOZ: 
RPM:
FTIT:
HYD:
A 
PARAMETERS: MAX AUG
FUEL FLOW: NO SET READING
OIL: 35-65 psid
NOZ: 50 TO 70%
RPM: 106%MAX
FTIT: 935C MAX
HYD: 2850 - 3250 psig
42
Q

PARAMETERS: FLUX

OIL:
NOZ:
RPM:
FTIT:

A 
PARAMETERS: FLUX
OIL: +- 5 psid
NOZ: +- 2%
RPM:+- 1RPM
FTIT: +- 10C

Engine Run Class (1 decks)

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