Engines

Question 1

What are the primary differences between an automatic and a manual start?

Answer 1

Automatic Start - The FADEC provides full monitoring during start and will provide appropriate ECAM cautions and procedures to follow in the event of a start fault

Manual Start - Automatic start interruption and auto-crank are not available

Question 2

When would you use a manual start?

Answer 2

After aborting a start because of:
Engine stall
Engine EGT overlimit
Low start air pressure

When expecting a start abort because of:
Degraded bleed performance due to hot conditions or at high altitude airports

An engine with a reduced EGT margin in hot conditions or at high altitude airports

Marginal performance of the external pneumatic power group