MTF Checks

Question 1

TR Pedal Travel Check

Answer 1

• Function of pedal adjuster assembly.

• Ensuring that foreign objects (FOD, tools) are not lodged in yaw axis flight controls in cockpit floor.

Question 2

Seat Height Adjustment Check

Answer 2

• Function of seat height adjustment mechanisms.

Question 3

Seat Fore/Aft Adjustment Check

Answer 3

• Function of seat fore/aft adjustment mechanisms.

Question 4

Lumbar and Seat Cushion Valves Check

Answer 4

• Check function of seat bladder and valves.

Question 5

Variable Load Energy Absorber (VLEA) settings

Answer 5

• Checking for smooth operation and proper dent.

• Ball bearing is not missing.

Question 6

Seat Belt & Shoulder Harness Check

Answer 6

• Locking and webbing retraction of shoulder harness reels in inertial lock and manual lock modes.

• Proper installation of shoulder harnesses (stitching up, webbing not twisted coming out of reels).

• Proper installation of seat belt and shoulder harness buckles (buckle must be the same at pilot and copilot stations).

• Condition of webbing and stitching.

Question 7

Parking Brakes Check

Answer 7

• Engagement and disengagement of parking brake from pilot and copilot stations.

Question 8

Fire Detection/Battery Bus Tie Connector Test

Answer 8

• Fire detection and cockpit warning indication circuits (POS 1 - wall mounted detector circuits, POS 2 - deck mounted detector circuits).

• T-handle mounted fire warning lights.

• With Batt No. 1 switch OFF – Checking for the DC ESS BUS 1 OFF caution does not appear and that the APU T-handle remains on. (K502, and #1 DC ESS BUS and #1 BATT BUS).

• With Batt No. 2 switch OFF – Checking for MFD 3 remains on and that the ENGINE 2 FIRE T-handle remains on. (K502, and #2 DC ESS BUS and #2 BATT BUS).

Question 9

Rotor Brake Check

Answer 9

• With Battery switches on and the rotor brake is off. ENG POWER CONT levers can be advanced past the IDLE detent (Electrical Interlock)

• With rotor brake on, interlock lever moves to the up position. ROTOR BRAKE ON advisory appears. Check pressure 450-690 psi.

• ENG POWER CONT levers cannot be advanced past the IDLE detent.

• Rotor brake off, Interlock moves down, pressure returns to 0 psi, and ROTOR BRAKE ON advisory disappears.

Question 10

Data Loader Check

Answer 10

• DTS status is a GO.

• Load and confirm indications are PASS.

Question 11

Lamps Test

Answer 11

• The following lights and switches shall illuminate when the lamps test button is press and held: overhead console capsules (expect BATT GOOD), FD/DCP switches flash green/amber, reversionary panel, IVHMS event switch, all crew station ICS panels, STABILATOR CONTROL/AUTO FLIGHT CONTROL panel, and the TAIL WHEEL LOCK/UNLK switch.

• Checking for burnt out lights

• Lamps test button release, all master caution panel lights go off for ½ second, and steady tone is heard and both master caution lights come on for 2 seconds, then off for ½ seconds. Steady tone returns.

Question 12

EGI Ground Check

Answer 12

• Checking proper initialization, and the EGI alignment process is complete.

• Start a time for a INU accuracy check

Question 13

Multifunction Flight Displays Check

Answer 13

• Full bright and dim switches.

• Review MFD display status page for any input data loss.

• Review all 8 test pattern screens for any flaws (No more than 30 bright or black dot defective elements. No more than 2 dots within a 5mm diameter circle, and no more than 5 circles of this type per MFD.

Question 14

Reversionary Switches Check

Answer 14

• Check both sides REV segment of each switch illuminates.

• Check both sides ADC1/2, ATT1/2, DCU1/2, MAG1/2, VEL1/2, and FMS1/2 illuminates on the PFD page on the MFD.

Question 15

Stabilator Audio Warning Priority Check

Answer 15

• Audible warning unit.

• K-44 audible warning control relay.

• K-46 ground sense relay (and left WOW switch).

• K-48 engine audible warning reset relay.

• K-49 stabilator audible warning reset relay.

Question 16

Heater and Ventilating System Operation Check

Answer 16

• Vent blower motor.

• Heater mixer valve.

• Airflow through cockpit louvers, crewmember vents, and chin bubble, cockpit door, overhead window, and gunners’ window air outlets.

• Function of all louvers and vents (open, flow adjustment, shut without air leakage).

Question 17

Windshield Wiper System Operating Check

Answer 17

• Function of wipers.

• Function of wiper motor and wiper circuitry at HI, LOW, and PARK settings.

Question 18

Cyclic Forward Stop Check

Answer 18

• Setting of secondary cyclic forward stop (stop bolt at base of cyclic stick).

• Cyclic rig.

• Determination of a reference measurement for use in the Vh check.

Question 19

Primary Servo Check

Answer 19

Individual movement of flight controls through full range in no less than 5 seconds:

• Possible damage, improper installation, or impending failure of flight controls.

• Blade chatter may indicate damage, improper installation, or impending failure of main rotor components (droop stop rings, PC rod bearings, swashplate uniball). Full range collective movement in 1 second:

• Lighted PRI SERVO 1 FAIL light flickers off and other light flickers on may indicate primary servo pilot valve jam or bypass valve problem.

• Both PRI SERVO FAIL lights illuminate may indicate a weak backup hydraulic pump.

• Unrestrainable cyclic stick drive may indicate a servo rate related discrepancy. Direction of drive (fore, aft, or lateral) will lead to suspect primary servo. SVO OFF switch - opposite stage:

• Primary servo electrical interlock. SVO OFF switch 2ND STG:

• Loud clunk heard and felt in airframe indicates possible servo timing problem. SVO OFF switch to 1ST STG then 2ND STG:

• Checking function of the SVO OFF switch.

Question 20

Boost Servo Check

Answer 20

BOOST switch off:

• LDS rig and possible HMU problems (indicated by collective stick jump more than 1/16 inch).

• Tail rotor rig and unbalanced forces in tail rotor system (indicated by pedal jump more than 1/16 inch).

Collective - move through full range:

• Collective boost servo output rod (free play of 1.5 inches may indicate broken collective boost servo output rod).

• Collective flight controls.

Pedals - move through full range:

• Yaw boost servo piston rod (free play of 1.5 inches may indicate broken yaw boost piston rod).

• Yaw axis flight controls.