900 Limitations Flashcards
Flight Deck Door
- The flight deck door must be kept closed and locked at all time during flight except to permit access and egress in accordance with the FOM and this CFM.
- Anytime the flight deck door is opened in flight, a challenge and response closing and locking verification must be used to verify that the door is closed and locked.
- Anytime one of the required flight crew leaves the flight deck, another crew member must be present in the flight deck to ensure that the required crew member is not locked out of the flight deck.
Aircraft Approach Catagory
When conducting instrument approach procedures always use Catagory D to determine applicable approach mins.
Cargo Load Limits
Aft- 3650
FWD- 1700
Max Mach Number
The maximum cruise Mach number during flight in RVSM airspace is 0.82.
Flap Extend Speeds
1- 230 8- 230 20- 220 30- 185 45- 170
Maximum Landing Gear Operating Speed
Extension- 220
Retraction- 200
Operating- 220
Turbulence Penetration Speed
280 or .75 whichever is lower
Windshield Wiper Operation
Max Airspeed- 250
Max airspeed with wipers failed out of park- 250
Tire Limit Speed
195
Max Airspeed for ADG Operation
Vmo/ Mmo
Max Tailwind
10kts- PIC and SIC
Max Crosswind Takeoff Dry
35- PIC & SIC
Max crosswind landing dry
32- PIC & SIC
Max crosswind Take off and landing wet
27- PIC & SIC
Max Crosswind takeoff and landing braking action POOR
15- PIC & SIC
Max Crosswind take off and landing dry high mins
25- PIC 15-SIC
Maximum Airport Pressure Altitude
Takeoff- 9600ft
Landing- 9600ft
Maximum Operating Altitude
FL410
Maximum Ambient Air temperature for takeoff and landing
ISA +35C
Minimum ambient air temperature approved for takeoff
- 40C
- 40F
Cargo
Flight must be within 60 minutes of a suitable airport if cargo is carried in either cargo compartment.
Taxi Lights
The taxi lights must be switched OFF whenever the aircraft is stationary in excess of 10 minutes.
Wheel Brake Cooling Limit
Brake cooling times must be observed between a landing or low energy rejected takeoff (RTO) and a subsequent takeoff, to ensure that a sufficient brake energy is available to bring the airplane to a complete stop if the subsequent takeoff is rejected.
Maximum relief differential pressure
8.7 psi
Maximum negative differential pressure
-0.5 psi
Maximum Altitude for single pack Operation
25,000ft
During taxi, takeoff, and landing differential pressure must not exceed
0.1 psi
Pressure Cabin
- The airplane must be completely depressurized prior to opening any of the airplane doors.
- To preclude possible crew and/or passenger ear damage, use of the EMER DEPRESS switch above 15,000ft is prohibited.
Automatic Flight Control System
Operations with autopilot engaged is prohibited at altitudes below 600ft AGL, except when performing the following:
- For visual and non-precision approaches, the minimum autopilot use height is 400ft AGL.
- For precision approaches, with both engine operating, the minimum autopilot us height is 80ft AGL.
- For precision approaches, with one engine operating,the minimum autopilot use height is 110ft AGL.
Operations with an ILS glide path angle that exceeds 3.5 degrees are prohibited.
Maximum Crosswind component takeoff and landing braking action Fair
20kts PIC & SIC
RVSM Airspace
The ADC source coupled to the active autopilot must be the same as that coupled to the ATC transponder during flight in RVSM airspace.
AC Generator Loading
0-41000ft Load Limit of 40 Kva main generators and APU.
Permissible Loads on the DC systems- TRU
Inflight, the maximum permissible continuous load on each TRU is 120 amps.
Permissible Loads on DC systems- CRT
To protect the flight compartment CRT displays, the maximum permissible time for ground operations with DC only is five (5) minutes.
Circuit Breaker reset (inflight)
A circuit breaker must not be reset or cycled (I.e. opened or closed) unless doing so is consistent with explicit procedures specified in this manual or unless, in the judgement of the PIC, that resetting or cycling of the circuit breaker is necessary for the safe completion of the flight.
Minimum Descent Altitude
When setting the MDA marker on the barometric altimeter using DH/MDA knob on the Air data reference panel, the next highest 10ft increment must be selected if the altitude is not at a 10ft increment.
Traffic Alert & Collision Avoidance System (TCAS)
Pilots are authorized to deviate from their Air Traffic Contral (ATC) clearance in order to comply with a traffic alert and collision avoidance system (TCAS) resolution advisory (RA) command.
Maximum Ramp Weight (MRW)
85000lbs
Maximum Takeoff Weight (MTOW)
84500lbs
Maximum Landing Weight (MLW)
75100lbs
Maximum Zero Fuel Weight (MZFW)
70750lbs
Minimum Flight Weight
45000lbs
Cowl Anti-ice System- ground operations
The cowl anti-ice system must be ON when the OAT is 10C (50F) or below and visible moisture in any form is present.
The cowl anti-ice system must also be ON when OAT 10C (50F) or below when operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush is present.
Note: If this use of anti-ice and the continuous ignition are required at the same time, select the cowl anti-ice on prior to selecting continuous ignition ON. (Company)
Cowl anti-ice system- Flight operations
Icing conditions exist in flight at a TAT of 10C (50F) or below and visible moisture in any form is encountered, except when SAT is -40C or below
The cowl anti-ice system must be ON:
- When in icing conditions, or
- When ICE is annunciated by the ice detection system.
Wing Anti-ice system- Ground operations
The wing anti-ice must be ON for takeoff when the OAT is 5C (41F) or below and visible moisture in any form is present.
The wing anti-ice system must also be ON for takeoff when the OAT is 5C (41F) or below and the runway is contaminated with surface snow, slush, or standing water.
When Type II, III, or IV anti-icing fluids have been applied, the wing anti-ice system must only be selected ON, if required, just prior to thrust increase for takeoff.
Wing Anti-ice system- Flight ops
The wing anti-ice system must be ON:
- When ICE is annunciated by the ice detection system or
- When in icing conditions and the Airspeed is less then 230kts.
Do not hold in icing conditions with the flaps/slats extended.
Pneumatic system
Wing and/or cowl anti-ice selection is prohibited with the APU as the bleed air source.
Super Cooled Large Droplet Icing
Continued operation in areas where super cooled large droplet icing conditions exist is prohibited.
SLD icing conditions are indicated by ice accretion on the flight compartment side windows.
- Wing anti-ice system must be ON in SLD icing conditions.
- The cowl anti-ice system must be ON is SLD icing conditions.
- Leave icing conditions when side window icing occurs.
Cold weather ops
Takeoff is prohibited with frost, ice, snow, or slush adhering to any critical surface. (Wings, winglet, horizontal stabilizer, vertical stabilizer, control surfaces, and engine inlet)
Fuel- center fuel
Center tank fuel quantity must be monitored throughout flight.
Takeoff with a fuel load in excess of 500lbs in the center fuel tank is not permitted unless each wing tank is above 4400lbs.
Fuel imbalance
The maximum permissible fuel imbalance between contents of the main left tank and the main right tank are given below:
- During takeoff- 300lbs
- All other phases of flight- 800lbs
Fuel remaining in a tank when the appropriate fuel quantity indicator reads zero is not usable.
Minimum Fuel for Go around
The minimum fuel for go-around is 600lbs per wing (with airplane level) and assuming a maximum airplane attitude is 10 degrees nose up.
Fuel Temperature
Takeoff with engine fuel temperature indications below 5C (41F) is prohibited.
Fuel cross flow
Powered cross flow and gravity cross flow must be off for takeoff.
APU- ambient temperature
Minimum ambient temperature for starting a cold soaked APU on the ground is -40C.
APU- starter
The APU starter motor duty cycle is as follows:
- Do not preform more than three start/stop attempts in one hour.
Note: A two minute delay must be observed between cranking attempts to allow for cooling of starter and starter contractor and for APU drainage.
APU Bleed Air Limitations
Bleed Air Extraction- APU bleed air extraction is not permitted above 25000ft.
Engine Start during Ground ops- No bleed air extraction limitation. Each engine may be started using the APU as a bleed source.
APU Generator
The maximum permissible load on the APU Generator is 40kVA.
Engine Warm-up
- The engine must remain at IDLE until oil pressure reaches normal operating range.
- During all starts, do not exceed 75% N1 for two minutes after or until all operating indications are in the normal range, whichever is longer.
Engine HIGH PWR schedule switch
Use of the High PWR schedule switch is not permitted for normal operations.
Airplane cold soaked
Before the first flight of the day, when an airplane is cold soaked at an ambient temperature of -30C (-22F) or below for more than 8 hours.
- The engines must be motored for 60 seconds and fan rotation must be verified before engine start is initiated.
- Thrust reverses must be actuated until the deployed and stow cycles are 5 seconds or less.
Continuous Engine Ignition
Continuous engine ignition must be used during the following:
- Takeoff and landing on contaminated runways.
- Flight through moderate or heavier intensity rain.
- Flight through moderate or heavier intensity turbulence.
- Flight in the vicinity of thunderstorms.
Note: If the use of cowl anti-ice and continuous ignition are required at the same time, select cowl anti-ice on prior to selecting continuous ignition ON. (Company)
Reduced (Flex) Thrust Takeoff
Flex Thrust takeoff must not be used:
- If wing and/or cowl anti-ice bleeds in use.
- On runways contaminated with standing water, slush, snow or ice.
- When warnings of wind shear or down drafts have been forecast.
- When the anti-skid system is inoperative.
The flex Thrust procedure may be used on wet runways, provided that wet runway performance data is used
Starter Cranking limits
The starter must not be used if indicated N2 rpm exceeds 45%.
Engine Start (ground)
Start
1&2- 90 secs ON. 10 secs cool down
3-5- 90 secs ON. 5 min cool down
Engine Start or Motoring (Flight)
Start
1- 120 secs ON 10 sec cool down
2-5. 60 secs ON. 5 min cool down
Motoring (ground)
Start
1- 90 secs ON. 5 mins cool down
2-5- 30 secs ON. 5 mins cool down
Engine Start
At initiation of thrust lever movement from SHUT OFF to IDLE.
- ITT must be 120C or less for all ground starts.
- ITT must be 90C or less for all air starts.
Thrust Reversers
- Thrust reversers are approved for ground use only; activation of the thrust reverser levers is prohibited in-Flight.
- Thrust reversers are intended for use during full stop landings.
- Do not attempt a go-around maneuver after deployment of the thrust reversers.
- Takeoff with thrust reverser icons or EICAS warning and/or caution messages displayed is prohibited.
- During Landing, maximum reverse thrust is prohibited below 75kts, and reverse idle should be achieved by 60kts.
- During preflight check of the thrust reversers with the airplane stationary, reverse thrust must be limited to reverse idle.
Reverse Taxi Operation
Using the thrust reversers to back up the airplane, commonly referred to as reserve taxi operations or powerback, is strictly prohibited in all situations.
Slats/Flaps
- Enroute use of slats/flaps is prohibited.
- Flight with slats/flaps extended at altitudes above 15000ft is prohibited.
Flight Spoilers
- Flight spoilers must not be extended in flight below an altitude of 1000ft AGL.(company)
- To ensure adequate maneuver margins, flight spoilers must not be extended in flight at air speeds below Vref+10 for the current Weight and flap configs.
Stall Protection System
Both stall protection system must remain ON for all phases of flight.
