W,C&N'S Flashcards
Shoulder harness locks - Check for proper operation of the two position harness inertia reel lock lever.
- W
Prior to putting on the safety belt, all loose straps must be secured properly to eliminate emergency egress snag hazards.
8.19 Cockpit equipment checks
- N (Abbreviated)
I must be able to reach and actuate all primary flight, propulsion and emergency controls, while restrained, at the appropriate design eye position.
APU CONTR switch - ON
N, N
- N
If the APU does not start and the APU ACCUM LOW advisory does no appear with the APU CONTR switch ON, the manual override lever on the ACCUM manifold should be pulled to attempt another start, and held until APU has reached self-sustaining speed.
- N
I APU fails, note and analyze BITE indications before cycling BATT switch or before attempting another APU start.
APU generator switch - ON
W (abbr.)
Ensure stabilator is clear, as it will move to full down position when AC power is applied.
EDECU - Check signal validation code 15%
C, C, C
- C (abbr.)
If EDECU is installed, verify validation code on TRQ indicator.
15% = C power (DAS plug not installed, helicopter may be flown)
25% = D power indicates DAS plug installed, may potentially over-torque powertrain. (Do not fly helicopter)
Can also legally show 0 on the display
Doppler/GPS - On an program
- N
Use only map datums:
WGS-84
NAD-27
Caution/advisory/warning panels - Check as required
N,N
- In DIM mode: cautions or advisories may pulse with the LOW ROTOR RPM
- Switch legend on VSI/HSI and CIS mode select may change when C/A panel BRT/DIM-TEST switch is set to TEST. Can occur in flight, and can be reset by pressing the switches.
Flight Controls - Check first helicopter flight of day
W, W, N
- W
Aviator must perform sweep to check for interference with gear. If found, remove. - W
If #1 or #2 PRI SERVO PRESS appears with collective movement, servo bypass valve may be damaged = Do not fly helicopter. - N
COLL and PEDAL movement, check not more than 1.5 inches free play.
Stabilator - Check
W, N
- W
If any part of check fails = do not fly helicopter.
- N
RIGHT STAB POS indicator must be used. Left may vary by ±2° from right.
Engine(s) - Start
C, N, C, C, C, N
- C
If ignition switch is OFF during start, DO NOT SWITCH ON. Abort start!!
- N
#1 or #2 FUEL PRESS may appear briefly during start. Do not use FUEL BOOST PUMP CONTROL to extinguish FUEL PRESS cautions during start sequence.
- C
Do not switch EPCL from IDLE to OFF while pressing starter button = can damage switch.
- C
Ensure cyclic is kept neutral, collective no more than 1 inch above full down and pedals centred until % RPM R reaches 50%to prevent damage to anti-flap bracket bushings.
- C
60/60 rule. (Starting less than one hour since prev. shutdown, motor starter for 60 sec before advancing EPCLS.)
- N
If ENG STARTER caution appears when starter button is released, and EPCL is OFF, start may be continued by pressing and holding the starter button until 52-65% Ng is reached, then release.
Hydraulic leak test system - Check
N, N
- N
Place switch i TEST and released immediately.
(When performing the HYD LEAK TEST, all leak detection is checked electrically. Manually holding HYD LEAK TEST switch in TEST pos does not allow leak detection sys. to be checked automatically. It manually holds the circuits open)
- N
If backup pump is still running after HYD LEAK TEST, cycle BACKUP HYD PUMP switch to OFF then AUTO.
Tail rotor servo transfer - Check
- N
Failure of BACKUP PUMP ON or #2 TAIL RTR SERVO ON advisories to appear indicates failure in leak detection system.
Engine RUNUP
2. ENG POWER CONT lever(s) - FLY
W
Tail wheel lock pin not engaged? ADVANCE EPCL SLOWLY! Quick movement may turn helicopter = injury or LOL.
GPS/DPLR NAV MODE selector - as desired
N
Do not stop selector in TEST mode, as it may wipe any programmed routes.
Collective friction - As required
N
Approx. 3 pounds of friction should be used to prevent PICO. (Pilot induced collective oscillations)