Which sequence is correct for an UH-60 engine start and what indicators should be monitored?

Which sequence is correct for an UH-60 engine start and what indicators should be monitored?

• A. Connect power, start the engine following the prescribed sequence, and monitor N1, N2, EGT, and oil pressure; stop if abnormal values, smoke, or alarms appear.
• B. Start the engine by jumping the sequence and observe only the outside temperature.
• C. Open the cowling during start and watch gauges through the open panel.
• D. Ignore the gauges and rely on sound.

Answer: (A)

Starting a UH-60 engine safely relies on two things: following the prescribed start sequence and actively watching the engine indicators during spooling. Using the correct sequence ensures all systems involved in starting—power, ignition, fuel flow, and any necessary interlocks—operate in the right order, helping the engine spool up smoothly without fuel or ignition mis-timing, stalls, or other faults. During the start, monitor the key gauges and indicators: N1 and N2 should increase in a controlled, progressive way as the engine winds up. EGT should rise gradually to within normal limits as the turbine section comes online. Oil pressure should quickly establish a normal range and stay there, indicating the lubrication system is working. If any value behaves abnormally—rapid or excessive EGT, sluggish or no oil pressure, overspeeds—or if smoke or alarms appear, abort the start to prevent damage. Skipping the sequence, opening the cowling during start, or ignoring the gauges and relying on sound alone do not provide the necessary safety feedback or protection against engine damage. The indicators give real-time visibility into the engine’s health and readiness to run.

Starting a UH-60 engine safely relies on two things: following the prescribed start sequence and actively watching the engine indicators during spooling. Using the correct sequence ensures all systems involved in starting—power, ignition, fuel flow, and any necessary interlocks—operate in the right order, helping the engine spool up smoothly without fuel or ignition mis-timing, stalls, or other faults.

During the start, monitor the key gauges and indicators: N1 and N2 should increase in a controlled, progressive way as the engine winds up. EGT should rise gradually to within normal limits as the turbine section comes online. Oil pressure should quickly establish a normal range and stay there, indicating the lubrication system is working. If any value behaves abnormally—rapid or excessive EGT, sluggish or no oil pressure, overspeeds—or if smoke or alarms appear, abort the start to prevent damage.

Skipping the sequence, opening the cowling during start, or ignoring the gauges and relying on sound alone do not provide the necessary safety feedback or protection against engine damage. The indicators give real-time visibility into the engine’s health and readiness to run.