Limitations Flashcards
Maximum 90 degree crosswind for takeoff and landing?
27 knots
Maximum 90 degree crosswind for landing from a Category II Approach?
15 knots
Maximum headwind landing from a Category II Approach?
16 knots
Maximum direct tailwind for takeoff and landing?
10 knots
Maximum runway slope for takeoff and landing?
+2 degrees uphill and -2 degrees downhill
Maximum operating altitude for both 700 and 900?
41000 ft
Maximum pressure altitude for takeoff and landing?
8000 ft
Minimum ambient temperature for takeoff and landing?
-40 degrees Celsius
Maximum ambient temperature for takeoff and landing?
ISA + 35 C
Maximum peak wind value ?
50 knots , except in an emergency
Maximum taxi and ramp weight CRJ 700?
75,250 pounds
Maximum takeoff weight CRJ 700?
75,000 lbs.
Maximum landing weight CRJ 700
67,000 lbs
Maximum zero fuel weight CRJ 700?
62,300 lbs.
Maximum taxi and ramp weight CRJ 900?
85,000 lbs.
Maximum takeoff weight CRJ 900?
84,500 lbs.
Maximum landing weight CRJ 900?
75,100 lbs
Maximum zero fuel weight CRJ 900?
70750 lbs.
Turbulence Penetration Speed?
280 knots indicated or .75 Mach, whichever is lower.
Maximum gear extension speed?
220 knots
Maximum gear extended speed?
220 knots
Maximum gear retraction speed ?
200 knots
Maximum airspeed for windshield wiper operation?
250 knots
Maximum airspeed for windshield wiper operation failed in non parked operation ?
250 knots indicated
Maximum cruise Mach in RVSM Airspace?
.82 Mach
Tire ground speed limit CRJ 700?
182 knots
Tire ground speed limit CRJ 900?
195 knots
Where is RVSM Airspace ?
FL 290 to FL 410
Maximum Flap extension speeds (Vfe)for both CRJ 700 and 900?
Flaps 1. 230 knots
Flaps 8. 230 knots
Flaps 20 220 knots
Flaps 30 185 knots
Flaps 49 170 knots
During taxi what are the icing condition limitation’s?
During taxi with ground contamination or visible moisture ?
OAT 10 C or below.
Cowls ON
What are the anti icing system requirements for takeoff?
Ground Contamination or Visible moisture with…
OAT 10 C or below
Cowls ON
OAT 5 C or below
Wings ON
Cowls ON
If visible moisture is present below 400 ft AGL with OAT 10 C or below activate cowl anti ice for takeoff. If OAT is 5 C or below activate both cowl and wing for takeoff.
Icing conditions in flight?
Visible Moisture
From TAT 10C to SAT -39C
> =230
Cowl
<230
Wings
Cowl
What do you do if ICE in annunciation in flight?
Wings ON
Cowls ON
Ground Contamination?
Runways, ramps, or taxiways with surface snow, ice , slush, or standing water.
What is visible moisture?
Visible moisture or precipitation in any form such as fog with a visibility of one mile or less, mist, rain , snow, sleet, and ice crystals or clouds inflight.
Engine Color Range limitations?
Red - maximum and minimum limitations
Amber - caution range
Green - normal operating range
What are the engine starting cranking limits?
Start Maximum time on. Followed by
1. 90 seconds. 10 seconds off
2. 90 seconds. 10 seconds off
3. 90 seconds. 5 minutes off
Starter cranking limits in flight?
Start. Maximum time on. Followed by
1. 2 minutes. 10 seconds off
2nd and subsequent 1 minute. 5 minutes off
What is the maximum N2 for starter engagement?
45% in flight or on the ground
When do you move the thrust lever from Start to Idle during engine start?
ITT 120 C degrees or less on the ground
ITT 90 C degrees less for all air starts
What is the minimum oil pressure at Takeoff Power?
45 psi minimum
What is steady state idle oil pressure?
25 psi minimum
What are the maximum permitted fuel imbalances for left and right wing tanks?
300# for takeoff
800# for in flight
2500# for Refuel and Defuel
What are the APU Starter cranking limits?
The APU Starter motor duty cycle is limited to not more than 3 start / stop attempts In one hour with a two minute delay between cranking attempts.
Bleed air extraction from the APU is not permitted above FL?
FL 250. Air Conditioning
Can each engine be started on the ground using bleed air as an air source?
Yes
What is the APU door limitation if the door position is unknown?
220 knots
Or leave the APU ON (no limitation)
Can you use speed mode during approach?
No (neither Flight director or Autopilot coupled)
What are the Autopilot operation limits?
Prohibited below 600 ft. Except…
For visual and non precision approaches 400 ft. AGL
For precision approaches. 80 ft. AGL.
For precision approaches with one engine operating. 110 feet
Glide path angles 3.5 to 4 degrees. 120 feet. ( 4000 ft maximum field elevation)
ILS approach with greater than 4 degrees prohibited
Category II approaches must be flown with autopilot engaged
Maximum cruise speed in RVSM Airspace?
.82 Mach
To protect the flight compartment CRTs what is the max permissible time for ground operations with DC power only?
5 minutes
Maximum Slats/Flaps extended altitude?
15,000 ft.
Enroute use of Slats/Flaps in prohibited
Minimum altitude for flight spoiler deployment?
1000 ft.
To ensure adequate maneuvering margins , flight spoilers must not be extended in flight at airspeeds below the recommended reference speed plus?
10 knots
What are the thrust reverser limits on landing?
Maximum reverse prohibited below 75 knots
Reverse idle by 60 knots
What is the limitation for the taxi lights?
Must be off when the plane is stationary for more than 10 minutes
What are the Wheel Brake Cooling Limitations?
Minimum brake cooling time is 15 minutes , and all BTMS indicators must be green and not increasing
Maximum positive pressure differential?
8.7 psi
Maximum negative differential?
- 0.5 psi
Maximum pressure differential for ground maneuvering?
0.1 psi
Maximum pressure differential at landing (initial touchdown)?
1.0 psi
Maximum altitude for single pack operation?
31000 ft.
What must be off before closing the main cabin door?
Low pressure air
When can you not use the EMER DEPRESS Switch?
Above 15000ft. To preclude possible crew/ passenger ear damage it is prohibited.
Engine color coded limitations?
Red. Maximum and minimum limitations
Amber. Caution range
Green. Normal operating range
After starting and after touchdown what libations do you want on engines?
After starting do not exceed 75% N2 for 2 minutes after start, or until all operating indications are in the normal range, whichever is longer.
Operate engines at or near idle for 2 minutes prior to shutdown.
When do we use continuous ignition?
Takeoff and landing on contaminated runways
Takeoff with high crosswind component (15knots or greater)
Flight thru moderate or heavier intensity rain
Flight thru moderate or heavier intensity turbulence
Flight in the vicinity of thunderstorms
Permissible AC electrical loads?
0 to 41000 ft. 40 kVA on each main generator and APU generator
Permissible DC electrical loads?
Inflight
Maximum continuous load on each TRU is 120 amps
Ground operation
To protect the flight compartment CRT displays , the maximum time for ground operations with DC power only is 5 minutes.
What is cold soaked? Limitations?
Before the first flight of the day , when the airplane is Cold Soaked at an ambient temperature of -30 C or below for more than 8 hrs.
The engines must be motored for 60 seconds and fan rotation must be verified before an engine start is initiated
Thrust reversers must be actuated until the deploy and stow cycles are 2 seconds or less
Minimum oil temperature for starting?
-40 degrees C
Maximum continuous oil pressure?
95 psi maximum
Thrust reverse usage?
Ground only, prohibited in flight
For full stop landing only. Do not attempt a go around after deployment
Do not take off with any thrust reverse light on or EICAS thrust lever massage displayed prohibited except described in MEL 78-30-01
During landing max reverse thrust is 75 knots and idle by 65 knots
During preflight check of the thrust reversers with airplane stationary reverse thrust is limited to reverse idle
Backing up using thrust reversers is prohibited
What are the limitations on reduced thrust takeoff?
Anti skid must be operative
Prohibited on contaminated runways
Prohibited if the airplane has been de iced
Prohibited if wing and /or cowl anti ice is in use
Prohibited if warning of wind shear or downdrafts have been forecast
Prohibited with an engine that cannot achieve full rated thrust
Prohibited when a special departure procedure specifies full thrust takeoff
Pressure refueling limits?
Left tank. 7492 lbs.
Right tank. 7492 lbs.
Center tank. 4610 lbs.
Total 19594 lbs.
Center tank limitation?
If over 500 lbs of fuel in the center tanks there must be at least 4400 lbs of fuel in each wing tank
What is minimum fuel for a go around?
600 lbs per wing tank
When must powered x flow and gravity x flow be off?
For takeoff
What is the engine takeoff fuel temperature limitation?
Takeoff with engine fuel temperature indication below 5 degree C is prohibited
Where do you transport live animals?
In the aft cargo compartment
