What is the process for performing an engine start on the Longitude 700?

• A. Start engines in any order without checklist
• B. Prestart checklist, ensure engines are cleared, start sequence per QRH, monitor parameters to stable idle and N1/EGT within limits
• C. Start all engines simultaneously and monitor only fuel flow
• D. Do not perform start until passengers disembark

Answer: (B)

Engine starts on this aircraft follow a fixed, safety-driven sequence. The essential steps begin with a prestart checklist to ensure all systems are configured for a safe start and that any faults are addressed. Verifying the engines are cleared means the intake area and surroundings are free of hazards or debris, and the aircraft is prepared for start. Then you execute the start sequence exactly as described in the QRH, which outlines the correct order and timing for ignition and fuel control to each engine. After the start is initiated, you monitor engine indications—specifically N1 (the compressor speed) and EGT (engine gas temperature)—to confirm the engine is spooling properly and is within approved limits. When the engine reaches a stable idle with N1 and EGT in the acceptable range, the start is complete and the engine is ready for further procedures.

Skipping the checklist, starting multiple engines without the prescribed sequence, or ignoring required monitoring can lead to improper ignition, engine damage, or unsafe operation. Waiting for passengers to disembark is unrelated to the mechanical start procedure.