CH47 FRC’s Flashcards
(40 cards)
When “flying the aircraft” during an emergency, the pilot should consider what?
(RAASH)
Rotor speed altitude attitude speed heading
What are the immediate actions When performing an emergency engine shut down
- ENG COND lever-STOP
- FIRE PULL handle- pull (a.r.)
- FIRE PULL handle- twist (engine fire only)
What are the three cautions and one consideration when performing an emergency engine shut down?
C1-positive identification of the malfunctioning engine must be accomplished
C2- if certain ECU faults are present, engine shut down may only be possible by using the fire pull handle or by manually closing the motorized gate valve at the ramp area
C3- resetting the fire pull handle may result in a residual fire
Consideration- Engine shut down in flight is usually not an immediate action unless a fire exists
What are the immediate actions associated with an abort start?
ENG COND lever-STOP
ENG START sw- motor (if high PTIT is indicated)
What is the note associated with an abort start?
If a second engine start is to be attempted, wait at least 15 seconds after the NG indicates zero before attempting start
What are the immediate actions associated with RESIDUAL FIRE DURING SHUTDOWN?
EMER ENG SHUTDOWN
ENG START sw- Motor (if high PTIT indicated)
What is the consideration when performing the emergency “residual fire during shut down”
If high PTIT was indicated, the engine must be motored to decrease the PTIT below 260°C
What is/are the immediate action step(s) for APU Fire?
APU sw- OFF
What are the immediate actions for AUTOROTATE?
Thrust CONT lever-adjust as required to maintain NR
Pedals-adjust as required
Cyclic- adjust as required
What are the immediate actions for ENGINE COMPARTMENT FUSELAGE OR ELECTRICAL FIRE-GROUND?
EMER ENG SHUTDOWN
APU sw- OFF
BATT sw- OFF
What are the immediate actions for ENGINE OR FUSELAGE FIRE-FLIGHT?
[F] Engine Fire-Confirm
EMER ENG SHUTDOWN(affected engine)-when conditions permit
LAND AS SOON AS POSSIBLE
What is the note associated with ENGINE OR FUSELAGE FIRE-FLIGHT
A thermal switch turns the heater blower on if the temperature rises above 29°C and may cause smoke and fumes to enter the cockpit through the ventilation system
What is the warning, consideration, and note associated with electrical fire in flight?
W-A duel engine flame out may occur if both generator switches are turned off above 6000 feet PA
C-consider the equipment that is essential to the current flight regime before isolating defective circuits
N-LCT’s and DASH Actuators will remain programmed at the air speed at which the generators were turned off
What are the immediate actions for smoke and fume illumination?
A/S- Above 60 KCAS
Pilots sliding window-Open
Helicopter attitude- yaw left, 1/2 to 1 ball width on inclinometer
[F] Upper half of main cabin door- Open
What are the notes associated with smoke and fume elimination?
N1- intensification of smoldering fire may occur if the pilot sliding window, upper half of the main cabin door, and the ramp are open
N2-if the source of the fire cannot be determined, close the cargo loading ramp but keep the pilots window and the upper half of the main cabin door open
What are the considerations when performing emergency descents?
C1-High speed straight-ahead descent produces the highest rate of descent
C2-actual touchdown area may vary from the apparent touchdown point due to the deceleration needed to dissipate the excess Airspeed
C3-out of trim descent allows for high rate of descent and simultaneous execution of the smoke and fume elimination procedure
C4- Low speed maneuvering descent allows flying over the intended area during the descent 
Describe high speed straightahead descent
Thrust CONT lever-lower to maintain NR 104%
A/S- 130-150 KCAS
Recovery-initiate at or above 600 feet AGL
Describe out of trim descent
Thrust CONT lever- lower to maintain NR 104%
A/S-100 KCAS
Retrim- adjust cyclic and pedals to obtain a minimum of one ball width out of trim to the right equivalent to a bank angle of approximately 8° to 10° right and a zero turn rate
Recovery- at or above 600’ AGL
Describe low speed maneuvering descent
Thrust CONT lever-lower to maintain NR 102%
A/S-75 to 90 KCAS
Bank Angle- adjust as required. Bank angles of up to 60° will result in the desired rates of descent
Recovery- at or above 600’ AGL
What is the immediate action for ditching power off and landing in trees power off?
AUTOROTATE
What are the immediate actions for SINGLE ENGINE FAILURE 
External cargo-jettison (as required)
FLT DIR CPLR- Uncoupled
DAFCS modes- OFF
What is the urgency to land in single engine failure
Land as soon as possible if not single engine capable
Land as soon as practicable if single engine capable
What are the two considerations for single engine failure
Engine restart during Flight may be attempted if no visible damage to the engine is present
When operating single engine for extended periods, the second engine must be motored for 10 seconds every 30 minutes
What are the immediate actions for DUAL ENGINE FAILURE?
AUTOROTATE
External Cargo-Jettison(as required)
FLT DIR CPLR- Uncoupled
DAFCS modes- OFF
