Engine Flashcards
N1 idle value
20-25%
N1 TOGA
99.5%
N1 APR MCT
Red Line
Max ITT for engine start
Red Line
ITT limit for ALL thrust modes
Red Line
N2 range for engine start
0-45%
N2 range for idle
55-65%
Min oil temp for engine start
-40C
Max oil pressure for engine start
Amber value for max of 10 min
N2 TOGA
99.4%
N2 MCT
98.0%
Oil pressure at idle
60 psi max
Oil pressure > 70% N2, TOGA, APR, MCT
Amber Value, 95 psi max
Oil temp for all thrust modes
Amber value (max of 15 minutes in TOGA & APR)
ITT residual limits
< 120C for ground start
< 90C for air start
Max oil pressure transient < 60C
156 psi
Oil pressure peak during start
182 psi max, 95 psi for max of 10 mins
Low oil pressure
Amber values when above idle require Oil Temp monitoring
APR Thrust - pilot initiated
Prohibited above 7500msl
or
Within 30 mins of start below 7500msl
EXCEPT IN CASE OF SAFETY OF FLIGHT
APR events must be logged in AML
ITT EXCEED B (B1)(C) status msg
Must be logged in AML
Thrust management data
N1 values for takeoff must be verified +/- 1.0% of flip card values
Method C Takeoff
> 30 degrees, >30 knots wind
Method B or C Takeoff
> 30 degrees, 5-30 knots
Method A, B, or C Takeoff
Within 30 degrees, no limit
>30 degrees, <5 knots
Aircraft Cold Soak
FFOD, <-30 degrees for 8+ hours,
Motor engines 60 seconds w/ N1 rotation verified prior to start
TR deploy / stow cycle 2 seconds or less
Continuous Ignition Required
Contaminated runway
Moderate - heavy rain
Moderate - heavy turbulence
Flight in vicinity of Thunderstorms
Warm up
Engines must remain at IDLE until oil pressure reaches normal operating range
During all starts, do not exceed 75% N1 for 2 minutes or until all operating indications in normal range, whichever is longer.
Thrust Reversers
Prohibited in flight Full stop only Takeoff with TR icons / eicas prohibited Retard to 60% reverse N1 below 75 knots Power back prohibited
Starter Limits - N2
No engagement above 45% N2
Starting - Fuel introduction
ITT <90 (air)
Starter - Time limits
Ground start - 2 attempts 90s on 10s off, 3 more 90s on 5m off
Air start/motor - 1 attempt 120s on, 10s off, 4 more 60s on 5m off
Ground motor - 1 attempt 90s on, 5m off, 4 more 30s on 5m off
Note: do not mix motoring with start limits. Fuel introduction implies start limit
Engine relight - windmilling
FL210 - 10,000: 290-Vmo, 7.2% N2 minimum
10,000 - SL: 250-Vmo, 7.2% N2 minimum
Engine relight - Starter assisted
FL210 - SL: Vref-Vmo, 0-45% N2
All engine out rapid relight
10,000 - SL: FADEC rapid relight has been demonstrated at 200 kias for up to 15s fuel interruptions.
