On which side of the AH-64E is ENG 1 located?
Left side
Engine rotation direction is to the 3 o'clock position. Is that clockwise or counter-clockwise (AFT LOOKING FORWARD)?
Clockwise
Output power of the -701D has Maximum Continuous Shaft Horse Power (SHP) of 1,716. True or False?
True
Primary engine mounts will support the engine and take up the vertical and side loads, but will the secondary mounts support the engine if a primary mount should fail?
Yes
Name the four engine modules.
Cold Section, Hot Section, Power Turbine Section and Accessory Section
The ATS serves what purpose?
The air turbine starter rotates the compressor through the accessory section module until the engine reaches an Ng speed that permits the engine to be self-sustaining.
What is the purpose of the radial driveshaft?
It turns the engine compressor section during starting from the ATS and drives the accessory section when the engine is operating.
What is the purpose of the IPS?
It provides separation of foreign particles from the inlet airflow to protect the engine from erosion and damage.
What does the engine Fuel System provide to the engine?
Pressurized, filtered fuel in the required amounts for combustion under varying power demands.
The fuel boost pump is an engine-driven, non-self-priming suction and pressure pump, which ensures negative pressure. Why?
To reduce fire hazard in case of Fuel System damage.
When engine fuel pressure drops below 9.0 psi, the pressure switch closes, and the MP receives a complete circuit signal. The MP will send a caution message to the EUFD and then signal to display a message on the MPD. Will this illuminate the MSTR CAUT pu
Yes
Which occurs first, the red indicator button popping on the fuel filter housing, or the EUFD message FUEL 1 BYPASS?
Fuel filter housing red indicator button popping (impending bypass)
The CHMU provides mechanical Ng overspeed protection to the engine at what percent Ng?
110% �2 Ng
The ODV receives an electrical signal from the EDECU when an Np overspeed exists, opening the overspeed solenoid valve, which stops fuel flow to the injectors (causing flameout). At what Np speed does this occur?
118 �1% Np
The engine oil filter has an impending bypass indicator that will cause a red indicator button to pop out when differential pressure across the filter reaches 40-60 psid. Will this send a signal to the MP?
No. This condition will normally be found during pre- or post-flight inspection.
What protects the engine lubrication system from excessive pressure during initial starts?
Cold oil relief valve
The oil pressure transmitter is responsible for sending a low oil pressure signal to the MP. When the MP receives this signal, what is the engine oil pressure?
Below 20-25 psi
Emergency lubrication for the number 1, 2, 3 and 4 bearings is provided by oil misting from jets, using reservoirs in A and B sumps. Does the C sump provide any emergency lubrication?
No
How long is emergency oil lubrication provided when Ng is 75%?
Approximately 30 seconds
Is the engine chip detector fuzz-burning or non-fuzz-burning?
It is non-fuzz-burning
Following a complete failure of an alternator, operation of the corresponding engine and all indications from engine instruments will be normal. What indication will be lost, will activate the MSTR WARN light, ENGINE 1 or ENGINE 2 OUT voice and EUFD messa
The Ng indications
How is the engine anti-ice/start bleed valve mechanically controlled?
By the CHMU during starts through the same linkage that positions the Inlet Guide Vanes (IGV) and variable-geometry stator vanes. It opens and closes at different Ng speeds dependent upon ambient air temperature.
Once the engine is self-sustained during the start process, are the igniter plugs used any more prior to engine shutdown?
No
Where does the thermocouple harness assembly measure the temperature of the gases for the engine?
At the power turbine inlet
In the event of an airframe electrical system failure, what position will the anti-ice/start bleed valve be in?
Open
How many Volts ac does the engine-driven alternator provide for the engine electrical system?
115 VAC
Which power lever quadrant requires electrical power (BATT or EXT PWR) to manipulate engine power levers?
CPG power quadrant
When a power lever is advanced into LOCKOUT, what automatic features are lost?
Np governing and TGT limiting
What is the ignition override switch (IGN ORIDE position) used for?
The switch is discreet and will be used to abort automatic start sequence or disengage the ATS output shaft if the sprag clutch fails to disengage
What are the Power Available Spindle (PAS) and the Load Demand Spindle (LDS) on the CHMU attached to in the crewstations?
The PAS is attached to the pilot's power levers, and the LDS is connected to the collective servo's bellcrank.
What 3 things happen to both engines when the engine chop button is pressed?
1. Np reference is removed - engines will immediately decelerate to idle speed
2. ENG CHOP Warning message will be appear on the EUFD
3. a voice message will announce "engine chop.
The MPD ENG page displays what three formats?
Ground, Flight, and Emergency format
What two status windows (only one at a time) may appear in the upper right of the Flight format when associated systems are outside normal operating ranges?
Engine oil pressures and hydraulic system pressures
Which status window of the two has priority when both systems are out of limits?
Hydraulic systems status window
When the ENG page autopages to Emergency format in response to an active Warning, how do you revert back to Flight format?
Acknowledge button (ACK, B4)
What engine parameters utilize the count-down timer feature?
Torque, TGT, and Ng
What are two types of engine HIT checks that can be performed?
Auto or Manual
How can you prevent the ECS from automatically activating the Heating mode?
By de-selecting BLEED AIR 1 and 2 on the A/C - UTIL page
When checking the BASELINE page, you find that the values are different from those annotated on the HIT log. What should be done?
Enter the values found in the aircraft log book via the Keyboard Unit (KU)
When the TGT margin is within __________ degrees or less of the table TGT limit, a write-up on the DA Form 2408-13 is required.
5 �C
What does it indicate when the TGT values are getting closer to the established limits?
Engine performance degradation