Limitations CRJ-550/700.
CRJ Max MMO/VMO
* .85 mach * 315 KIAS
Maximum APU EGT.
* 1038°C.
During landing, maximum reverse thrust is prohibited below _________ , and reverse idle should be achieved by __________?
* 75 KIAS. * 60 KIAS.
Continuous engine ignition must be used during the following
* T/O and LDG on contaminated runways * flight through moderate or heavier intensity rain * flight through moderate or heavier intensity turbulence * flight in the vicinity of thunderstorms
Maximum slope for Takeoff and Landing.
+ 2 % uphill - 2 % downhill
With engines running and bleeds configured for T/O, target N1 values must correspond to thrust setting charts _____
+ or - 1 %
Maximum negative differential pressure is
-0.5 PSI
Before the first flight of the day when the airplane has been cold-soaked at an ambient temperature of ______ or below for more than ____
-30°C for 8 hours. * Engine must be motored for 60 seconds and fan rotation verified before an engine start is initiated. * Thrust reversers must be actuated until deploy and stow cycles are 2 seconds or less.
T/O with bulk fuel temperature indications below ______ or _______ depending on fuel type is prohibited.
-30°C. -40°C.
Minimum ambient air temperature for T/O
-40°C
Maximum ambient temperature for starting a cold soaked APU on the ground is _____
-40°C.
Engine Operating Limit OIL TEMP @ Ground Start
-48°C minimum.
Maximum cruise Mach number for CRJ 550/700 in RVSM.
.83 Mach
Engine Operating Limit N2 @ Assisted Air Start
0 - 45%
Engine Operating Limit N2 @ Ground Start
0-45%
During taxi, T/O and LDG the maximum pressure differential is
0.1 PSI
Maximum tailwind component
10 knots
APR power 1 eng is limited to __________?
10 minutes for 1 engine APR power.
Taxi lights must be switched off whenever the airplane is stationary in excess of _____
10 minutes for taxi lights.
Engine Operating Limit ITT @ APR (max power)
1006°C (2min) 990°C (5min)
APU Maximum RPM
106 %
Maximum permissible continuous load on the TRUs is
120 amps
ITT must be below ______ before attempting to ground start engine
120°C.
Flight with Slats/Flaps extended at altitudes above ______ is prohibited
15,000 feet
The use of the EMERG DEPRESS switch above _______ is prohibited
15,000 feet
Engine Operating Limit OIL TEMP @ Max Continuous
155°C.
Maximum oil pressure is limited to _____ when oil temperature transient is less than _____
156 psi 60 C
Engine Operating Limit OIL TEMP @ Normal T/O
163°C (15min)
Engine Operating Limit OIL TEMP @ APR
163°C. (15min)
The CRJ 550/700 Maximum Tire Limit Speed is_________.
182 Knots ground speed
Engine Operating Limit OIL PRESS @ Assisted Air Start
182 psi / 95 psi (after 10min)
Engine Operating Limit OIL PRESS @ Windmill
182 psi / 95 psi (after 10min)
Engine Operating Limit OIL PRESS @ Ground Start
182 psi / 95psi (after 10min)
The APU must observe _____ cool down between start attempts
2 minutes for cool down.
Engine Operating Limit N1 @ IDLE
20-25%,
CRJ 550/700 All Engine Out Rapid Relight 10000-sea level FADEC rapid relight capability has been demonstrated at _______ for up to ______ fuel interruptions
200 KIAS 15 sec.
Engine Operating Limit OIL PRESS @ IDLE
25 - 60 psi / 25 - 95 psi ( oil temp <60.C)
APU bleed extraction is not permitted above ______
25,000 feet
Oil pressures above IDLE between _______ require oil temperature monitoring
25-45 PSI
Maximum airspeed for windshield wiper operation is ______
250 KIAS
CRJ 550/700 Engine Relight Windmilling 25,000 ft to sea level:
250 KIAS - VMO and 7.2 % N2 minimum
For ground operations, the left and right fuel tanks should Never have a difference greater than.?
2500 lbs.
Maximum airspeed for turbulence penetration is _____
280 KIAS or .75 mach whichever is lower.
The APU starter motor duty cycle is not limited to not more than _________
3 start attempts in 1 hour with 2 min cool down in between.
Maximum permissible fuel imbalance between the contents of the left/right wing tank: During T/O __________ All other phases of flight ________
300 LBS 800 LBS
Flight spoilers must not be extended in flight below an altitude of
300 feet AGL
The maximum altitude for single pack operation for the CRJ 550/700 is.
31,000 feet.
Maximum duration without engine oil servicing is ___ operation hours
36 hours
Airplane operations in excess of _____ operation hours the engine oil level must be checked within _______ after every engine shutdown
36 hours 3 min to 2 hours
APU may not be started above ________
37,000 feet
Minimum Operating Empty Weight for CRJ 700.
39,835 lbs
Engine Operating Limit OIL LEVEL for flight
40 % minimum with affected engine not started
Maximum generating loading
40 KVA
Maximum permissible load on the APU generator
40 KVA
APU generator may be use up to ________
41,000 feet
Maximum operating altitude
41,000 feet
Minimum Flight Weight for CRJ 700
42,000 lbs
Minimum Flight Weight for CRJ 550.
42,000 lbs.
The starter must not be used if indicated N2 RPM exceeds
45 % RPM
Engine Operating Limit OIL PRESS @ APR
45 - 95 psi
Engine Operating Limit OIL PRESS @ Normal T/O
45 - 95 psi
Engine Operating Limit OIL PRESS @ Max Continuous
45 - 95 psi
Normal T/O and maximum power 2 eng is limited to ________?
5 minutes for 2 engine at Maximum power.
The maximum permissible time for ground operations with DC power is__________ to protect the CRT displays.
5 minutes to protect CRT displays.
T/O with a fuel load in excess of _____ in the center tank is not permitted unless: * each main wink tank is above _____
500 lbs 4,400 lbs
Engine Operating Limit N2 @ IDLE
55 - 65%
Maximum Zero Fuel Weight for CRJ 550.
59,000 lbs.
T/O with engine fuel temperature indications below ______ is prohibited.
5°C.
Flights must be within ___ of a suitable airport if cargo is carried in either cargo compartment
60 minutes
Minimum fuel quanity for go-around is _____ per tank assuming a maximum climb attitude of ____
600 lbs 10 degrees nose up
Maximum Landing Weight for CRJ 550
61,000 lbs.
Maximum Zero Fuel Weight for CRJ 700
62,300 lbs
Maximum Takeoff Weight for CRJ 550.
65,000 lbs.
Maximum Taxi and Ramp Weight for CRJ 550.
66,000 lbs.
Maximum Landing Weight for CRJ 700
67,000 lbs
During all starts do not exceed ______ for ______ after start, or until all operating indications or in the normal range, whichever is longer
75 % N1 2 mins
Maximum Takeoff Weight for CRJ 700
75,000 lbs
Maximum Ramp Weight for CRJ 700
75,250 lbs
Maximum Airport Pressure Altitude for takeoff and Landing
8,000 feet
Maximum relief differential pressure is
8.7 PSI
Engine Operating Limit ITT @ Assisted Air Start
815°C.
Engine Operating Limit ITT @ Ground Start
815°C.
ITT must be below ______ before attempting to air start engine
90°C.
Engine Operating Limit ITT @ Windmill Start
927°C.
Oil Pressure may be greater than ____ for a maximum of ______
95 PSI 10 minutes
Engine Operating Limit ITT @ Max Continuous
960°C.
Engine Operating Limit ITT @ Normal T/O
964°C (2min) 948°C (5min)
Engine Operating Limit N2 @ Max Continuous
98.0%
Engine Operating Limit N2 @ Normal T/O
99.4%
Engine Operating Limit N2 @ APR (max power)
99.4%
Engine Operating Limit N1 @ APR (max power)
99.5%
Engine Operating Limit N1 @ Max Continuous
99.5%
Engine Operating Limit N1 @ Normal T/O
99.5%
The CRJ-700 Auxilary Power Unit
Allied Signal RE 220 RJ
What is the Maximum Crosswind component during Takeoff for the CRJ-550/700?
CRJ-550/700 max cross wind takeoff is 28 knots.
What is the Maximum demonstrated Crosswind during landing for the CRJ-550/700?
CRJ-550/700 the max crosswind is 30 knots.
Flying in supercooled large droplet icing
Continued operation in SLD icing conditions is prohibited. The wing and cowl icing systems must be on. Leave icing conditions imediately when side window icing occurs
For initial thrust lever movement from SHUT-OFF to IDLE for engine starts on the ground and in-flight. The ITT must be?
Engine Starts on the ground ITT must be less than 120°C. Engine Starts in-flight the ITT must be less than 90°C.
Maximum Landing Gear Operating Speeds
Extension 220 KIAS Down and Locked 220 KIAS Retraction 200 KIAS
Maximum Flap Extended Speeds for CRJ 550/700.
Flap Position VFE Flaps 1 - 230 KIAS Flaps 8 - 230 KIAS Flaps 20 - 230 KIAS Flaps 30 - 185 KIAS Flaps 45 - 170 KIAS
The Maximum G. Loading for the CRJ 550/700.
Flaps Retracted -1.0 to 2.5 G Flaps Extended 0.0 to 2.0 G
In cold weather operations, Take off is Prohibited when?
Frost , Ice, Snow, or Slush is adhering to any of the Critical areas. ( Wings, Upper Fuselage, Horizontal Stabilizer, Vertical Stabilizer, Control Surfaces, and Engine Inlets).
The CRJ-550/700 uses two ____________ engines
GE CF34-8C5B1
APU Indications Green
Green APU EGT - 0 to 806 C APU RPM - 0 to 106%
Maximum ambient air temperature for T/O or LDG
ISA +35 C
Engine must remain at ______ until oil pressure reaches ___________
Idle. normal operating range.
The CRJ-550/700 Fuel Tank quantities for Gravity Fueling.
Left & Right Wing- Gravity 7,290 lbs. Total - Gravity 14,580 lbs.
The CRJ 550/700 Fuel Tank quantities for Pressure Fueling.
Left & Right Wing- Pressure 7,492 lbs. Center Tank - Pressure 4,610 lbs. Total - Pressure 19,594 lbs.
Engine Operation Limits Due to Wind Direction Within 30 degrees on either directon of airplane nose or >30 degrees in either direction of the airplane nose; >5 knots windspeed
No limitation -TOGA thrust may be applied before brake release, but must be set by 60 KIAS.
Powered crossflow and gravity crossflow must be ____ for Takeoff.
OFF
Both stall protection system switches must remain ____ for _________
On. all phases of flight.
Enroute use of Slats/Flaps is?
Prohibited enroute.
Thrust reversers are approved for ground use only, activation of the thrust reversers in flight is?
Prohibited in-flight.
Backing up with thrust reversers is
Prohibited to back up with thrust reverser's.
Takeoff with any thrust reverser icons or EICAS warning and/or caution messages displayed is _________?
Prohibited with messages displayed.
The use of the Engine High-Power Schedule Switchlight is ___________?
Prohibited.
APU Indications Red
RED APU EGT 807 C APU RPM 107%
Engine Start or Motoring in Flight
START MAXIMUM TIME ON FOLLOWED BY Start 1 / 120 sec / 10 secs cool down Starts 2-5 / 60 sec / 5 min cool down
Engine Motoring on the Ground
START MAXIMUM TIME ON FOLLOWED BY Start1 / 90 sec / 5 min cool down Starts2-5 / 30 sec / 5 min cool down
Engine Start on the Ground
START MAXIMUM TIME ON FOLLOWED BY Starts 1&2 / 90 secs / 10 sec cool down Starts 3-5 / 90 secs / 5 min cool down
CRJ 550/700 Engine Relight Starter Assisted. 21,000 to sea level:
Speed VREF - VMO and 0% to 45% N2.
Minimum height use of the autopilot for the CRJ 550/700.
Takeoff - 600 feet AGL NonPrecision Approach - 400 feet AGL Precision apporach - 80 feet AGL with Glide slope <3.5 Or 120 feet AGL with Glide slope >3.5 to 4.0.
Do not attempt a go-around after deployment of the_________?
Thrust reversers
The maximum speed for ADG operations is _____
VMO/MMO
Cowl anti-ice system must be on, in flight when the TAT.
is 10°C or below, except when the SAT is -40°C or below: * in icing conditions * Ice is annunciated by the ice detection system.
Wing anti-ice sytem must be on, in flight when TAT.
is 10°C or below, except when the SAT is -40°C or below: * in icing conditions below 230 KIAS * ice is annunciated by the ice detection system. NOTE: * Do not hold in icing conditions with Slats/Flaps extended.
Cowl anti-ice system must be on, on the ground when the OAT
is 10°C or below: * when visible moisture is present * operating on contaminated taxiways and runways
Wing anti-ice system must be on, on the ground when OAT.
is 5°C or below: * when visible moisture is present * operating on contaminated runways When TYPE II or IV anti-icing fluids have been applied *wing anti-ice turned on just prior to T/O
With the thrust levers set for T/O target and actual N1 values should ________
match
To ensure adequate maneuver margins, flight spoilers must not be extended in-flight airspeeds below the recommended approach speed _____
plus 10 Knots
Oil Pressures should show a ______ value during start and may peak beyond _____ and are displayed as ______
positive 182 PSI amber dashes
The Maximum Weight capacity for the CRJ 550/700 cargo bins are?
~ Forward cargo is 1,000 lbs. ~ Aft cargo is 3,740 lbs.
T/O is permitted with frost adhering to:
•The upper surface of the fuselage if it is possible to distinguish surface features. •Maximum 1/8 inch layer of frost on underside of wing that is caused by cold soaked fuel.
The use of Reduced/Flex thrust for takeoff is NOT authorized when:
•Wing and cowl anti-ice bleeds are in use. •Warnings or forecasts of wind shear or downdrafts exist. Including LLWAS. •Runway is contaminated with standing water, slush, snow or ice. •Antiskid system is inoperative. •The engine cannot achieve full rated thrust.
Engine Operation Limits Due to Wind Direction >30 degrees in either direction of the airplane nose; >30 knots windspeed
Apply maximum of idle/taxi thrust before brakes released, then TOGA thrust by 60 KIAS.
Engine Operation Limits Due to Wind Direction >30 degrees in either direction of the airplane nose; between 5 and 30 knots windspeed
Apply up to a maximum of 75% N1 before brakes released, then TOGA thrust by 60 KIAS.
RVSM Required Equipment List
Autopilot Must be operational Altitude Alerting System Must be operational Altitude Reporting Transponder(2) One must be operational Air Data Computer(2) Two must be operational
