Engine Start
Pilot
| Step | Item | Action/Details |
|---|---|---|
| 1 | Check AIR SOURCE switch is set to OFF | |
| 2 | Set HYD TRANSFER PUMP switch | OFF (Guard up). |
| 3 | EMERG FLT HYD switch to LOW | Check for ON flag in EMER FLT LOW hydraulic pressure window. |
| Verify control over horizontal and rudder control surfaces on surface position indicator. | ||
| 4 | EMERG FLT HYD switch to HIGH | Check for ON flag in EMER FLT HI hydraulic pressure window. |
| Verify control over horizontal and rudder control surfaces on surface position indicator. | Should have a higher deflection rate than LOW. | |
| 5 | EMERG FLT HYD switch to HIGH | Check for ON flag in EMER FLT HI hydraulic pressure window. |
| 6 | ENG CRANK switch to R (Right engine). | Check for oil and hydraulic pressure at roughly 20% RPM. |
| Check START/VALVE caution light indication. | ||
| Switch is held in position automatically by solenoid until engine is at roughly 50% RPM. | ||
| 7 | Right throttle to IDLE at 20% RPM | Will automatically actuate ignition system and fuel flow. |
| Light off (EGT temperature rise) should occur within 5-15 secs. | ||
| EGT temperature should peak around 40-50% and not exceed 890 °C which constitutes a hot start. | ||
| 8 | Check ENG CRANK switch returns to OFF around 50% rpm and START/VALVE caution light turns off | If ENG CRANK stays at R manually set it to off before 60% rpm. |
| If START/VALVE caution light is still on, disconnect starter air. | ||
| 9 | Check R GEN caution light turns off | At around 59% rpm. |
| 10 | Check R FUEL PRESS caution light turns off | Before idle rpm. |
| 11 | Check engine idle instrument readings | - RPM - 62 to 78%. |
| - EGT - 500 °C (nominal). | ||
| - FF - 950 to 1400 Pph (nominal). | ||
| - NOZ position - 100%. | ||
| - OIL - 25 to 35 psi (nominal, 15 minimum). | ||
| - FLT HYD PRESS - 3000 psi. | ||
| 12 | Order plane captain to disconnect external electrical power | |
| 13 | ENG CRANK switch to L (Left engine). | When combined hydraulic pressure reaches 3000 psi switch ENG CRANK back to OFF. |
| 14 | HYD TRANSFER PUMP switch to NORMAL. | Will operate from flight side to maintain combined side at between 2400-2600 psi. |
| If it does not pressurize combined side within 10 secs, immediately set HYD TRANSFER PUMP switch to SHUTOFF. | ||
| 15 | HYD TRANSFER PUMP switch to SHUTOFF | |
| 16 | Repeat steps 6 to 11 for left engine | |
| 17 | Order plane captain to disconnect starter air | |
| 18 | Cycle AIR SOURCE switch to L ENG, R ENG, then set it to BOTH ENG | Verify cockpit airflow at all positions. |
| 19 | HYD TRANSFER PUMP switch to NORMAL |
RIO
The RIO monitors pilot procedures and plane captain signals to ensure maximum safety during engine start sequence.