B744 ENGINE Flashcards
When is automatic CONT ignition provided?
Ø Start with N2 < 50%
Ø TE Flaps out of Up
Ø NAI ON
Ø Engine flameout
What does AUTO START not protect?
Ø No Oil pressure
Ø No N1 rotation
With AUTO START armed, what happens when I pull the start switch?
Ø Arms the Start Valve
Ø Opens the Engine (pylon) Bleed Air Valve
What does the NORM selection mean on the STBY Ignition Selector?
Ø Normal AC supplies power to the selected igniter
Ø Stby Pwr supplies power to both igniters if AC power is lost
What does 1 or 2 mean on Stby Ignition?
Stby Pwr system supplies power continuously to the respective igniter
Pressing the CONT Ignition switch to ON does what?
Ø Selected igniter operates continuously
Ø Approach Idle minimum is commanded
When does the selected engine igniter operate?
Ø Start switch out
Ø NAI ON
Ø Flameout detected
When must I use CONT ignition?
Ø Heavy rain
Ø Severe turbulence
Ø Volcanic Ash
Ø Icing conditions (if NAI or its auto feature is INOP)
What is displayed on the Secondary EICAS display?
Ø N2 rpm Ø Fuel Flow Ø Oil Pressure Ø Oil Temperature Ø Oil Quantity Ø Vibration
Where would I read “X-BLD” indication if it is recommended for inflight start?
On the N2
What protection does AUTO START provide?
Ø Hot start
Ø Hung Start
Ø No EGT