GoJet Limitation Flashcards
all limits in handout
MIN FLIGHT CREW
PILOT and CO-PILOT
Technically 5 with FA’s and dispatch
A/C APPROVED OPERATIONS
VFR, IFR, ICING
FMS IS APPROVED FOR
ENROUTE, TERMINAL and NP APPROACH
MAX TAXI/RAMP WEIGHT
Crj700 75,250 LBS
Crj900 85,000 LBS
MAX TAKEOFF WEIGHT
Crj700 75,000 LBS
Crj900 84,500 LBS
MAX LANDING WEIGHT
Crj700 67,000 LBS
Crj900 75,100 LBS
MAX ZERO FUEL WEIGHT
Crj700 62,300 LBS
Crj900 70,750 LBS
MIN FLIGHT WEIGHT
Crj700 42,000 LBS
Crj900 45,000 LBS
MIN OPERATING EMPTY WEIGHT
Crj700 39,835 LBS
MAX PRESSURE ALT FOR T/O & LDG
8,000 FEET
MAX OPERATING ALTITUDE
41,000 FEET
MAX AMBIENT AIR TEMP FOR T/O & LDG
ISA +35c
MIN AMBIENT AIR TEMP FOR T/O
-40c
MAX RUNWAY SLOPES
+2 degrees (UPHILL), -2 degrees (DOWNHILL)
MAX TAILWIND COMPONENT
10 KNOTS
MAX MACH # IN RVSM AIRSPACE
Crj700 0.83 MACH
Crj900 0.82 MACH
FLIGHT SPOILERS IN FLIGHT BELOW 300 FT
PROHIBITED
To ensure adequate maneuver margins fight spoilers must not be extended in flight at A/S below recommended approach speed plus 10 KIAS
ENROUTE USE OF SLATS/FLAPS
PROHIBITED
EXTENDED SLATS/FLAPS above 15,000 FT
PROHIBITED
VFE 1°
230 KIAS
VFE 8°
230 KIAS
VFE 20°
220 KIAS
VFE 30°
185 KIAS
VFE 45°
170 KIAS
VLE
220 KIAS
Extending
also 220 KIAS for gear down and locked
VLO
200 KIAS
Retract
MAX TIRE SPEED
Crj700 182 KNOTS
Crj900 195 KNOTS
MAX SPEED FOR ADG OPERATION
VMO/MMO
ADG is the RAT
MAX AIRSPEED WINDSHIELD WIPERS
250 KIAS
TURBULENCE PENETRATION SPEED
280 KIAS OR .75 MACH (WHICHEVER IS LOWER)
THRUST REVERSER USE IN FLIGHT
PROHIBITED
THRUST REVERSER DEPLOYED
GO-AROUNDS PROHIBITED
THRUST REVERSER EICAS MSG
TAKEOFF PROHIBITED
THRUST REVERSER POWERBACKS
PROHIBITED
THRUST REVERSER MAX % N1 above 75 KTS
MAX N1
THRUST REVERSER MAX % N1 below 75 KTS
Max thrust prohibited and reverse idle required by 60 KIAS
LOAD FACTOR LIMITS FLAPS UP
+2.5G / -1G
LOAD FACTOR LIMITS FLAPS DOWN
+2G / 0G
MAX DIFFERENTIAL PRESSURE
8.7 PSI
MAX DIFFERENTIAL NEG. PRESSURE
-0.5 PSI
DURRING TAXI, T/O, AND LDG DIFERENTIAL MUST NOT EXCEED
0.1 PSI
MAX ALTITUDE FOR SINGLE PACK
Crj700 31,000 FEET
Crj900 25,000 FEET
WING ANIT-ICE ON
WHEN ICE IS ANNUNCIATED OR IN ICING CONDITIONS below 230 KIAS
Do you Hold or extend Flap or Slats in Icing Condition
DO NOT HOLD IN ICING CONDITION WITH FLAPS/SLATS EXTENDED
AIRCRAFT ENGNINES
Crj700 GE CF34-8C5B1
Crj900 GE CF34-8C5
N1 RED LIMIT
99.5%
N2 RED LIMIT
99.4%
OIL TEMP RED LIMIT
164c
OIL PRESS RED LIMIT
0 to 24 PSI
OIL TEMP AMBER
156 to 163c
OIL PRESS AMBER
VARIABLE
N1 GREEN LIMIT
0 to 99.4%
N2 GREEN LIMIT
0 to 99.3%
ITT GREEN
VARIABLE
OIL TEMP GREEN LIMIT
-40 to 155c
OIL PRESS GREEN LIMIT
VARIABLE
MAX ELEC LOAD MAIN GEN
40kVA
MAX ELEC LOAD EACH TRU
120 AMPS
MAX TIME FOR DC POWER USE (GROUND)
5 MINUTES to protect CRT displays
CIRCUIT BREAKER RESET
LIMITED: PIC FOR SAFETY OR AFM ONLY
ENGINE GRD START ATTEMPT 1 - 2
90 SEC ON, 10 SEC COOL DOWN
ENGINE GRD START ATTEMPT 3 - 5
90 SEC ON, 5 MIN COOL DOWN
ENGINE FLT START OR MOTOR 1
120 SEC ON, 10 SEC COOL DOWN
ENGINE FLT START OR MOTOR 2 - 5
60 SEC ON, 5 MIN COOL DOWN
ENGINE GRD MOTORING 1
90 SEC ON, 5 MIN COOL DOWN
ENGINE GRD MOTORING 2 - 5
30 SEC ON, 5 MIN COOL DOWN
DO NOT USE ENGINE STARTER
If indicated N2 exceeds 45%
starter cranking limits
stater must not be used if N2 rpm exceeds 45 percent
Thrust lever movement from off to idle
ground starts ITT 120C or less
air starts ITT 90C or less
AUXILARY POWER UNIT
ALLIED SIGNAL RE220(RJ)
MIN TEMP FOR START (GROUND)
-40c
MAX APU EGT (START)
692C TO 1038C (DEPENDANT ON TEMP AND ALT)
MAX APU EGT
1038 C
MAX APU RPM
106%
MAX APU START CYCLES
3 STARTS/ATEMPTS IN 1 HOUR
APU STARTER COOLDOWN
2 MINUTES BETWEEN ATTEMPTS
MAX ALT APU BLEED
25,000 FEET
MAX ALT APU GROUND START
15,000 FEET
MAX ALT APU AIR START
37,000 FEET
MAX ALT APU GEN LOADING
41,000 FEET
MAX LOAD ON APU GEN
40 kVA
APU EGT RED LIMIT
807C
APU RPM RED LIMIT
107%
APU EGT GREEN LIMIT
0 to 806C
APU RPM GREEN LIMIT
0 to 106%
MAX WING FUEL IMBALANCE
800 LBS
MAX WING FUEL IMBALANCE T/O
300 LBS
FUEL WEIGHT
6.75 LBS / GAL (2.2046 LBS / KG)
FUEL QTY WING PRESSURE REFUEL
7,492 LBS / WING
FUEL QTY WING GRAVITY REFUEL
CRJ700 7,290 LBS / WING
CRJ900 7,405 LBS/ WING
FUEL QTY CENTER TANK
4,610 LBS both planes
MAX FUEL QTY PRESSURE
19,594 LBS
MAX FUEL QTY GRAVITY
crj700 14,580 lbs
crj900 14,810lbs
MIN FUEL GO AROUND
600 LBS / WING (MAX 10 degrees NOSE UP)
MIN ENGINE FUEL TEMP FOR T/O
5C below 5c is prohibited
FUEL GRADES and MIXING
ALLOWED SEE AFM and GOM
FUEL ADDITIVES
ALLOWED SEE AFM
FUEL CROSSFLOW (POWERED/GRAVITY)
OFF FOR TAKE-OFF
JET A
MIN TEMP T/O -30C FREEZING POINT -40C
JET A1
MIN TEMP T/O -37C FREEZING POINT -47C
NO.3 JET
MIN TEMP T/O -37C FREEZING POINT -47C
MAX OIL CONSUMPTION (PER ENGINE)
189 Cubic Centiliters/HR (.05 GAL/HR)
MIXING OF DIFFERENT OIL GRADES
PROHIBITED
APPROVED ENGINE OIL
TYPE I, TYPE II, CASTROL 4000
MAX ENGINE OIL SERVICE
36 HRS*
How aften the engine oil must be checked?
in excess of 36 operating hours
It need to checked between 3 min and 2 Hours after every engine Shutdown
IF OIL REPLENISH IS USED
IF ENGINE OIL NEEDS TO BE REPLENISHED IT SHOULD BE ACCOMPLISHED 15 MIN - 2 HRS AFTER SHUTDOWN
MAX REFILL WITHOUT DRY MOTORING
2 QTS
IF REPLENISHED AND PERIOD EXCEEDED
ENGINE(S) MUST BE DRY MOTORED
VMO 0-8,000 FEET
330 KIAS
VMO 8,000-25,000 FEET
335 KIAS
MMO 27,000-32,000 FEET
0.80 MACH
VMO 27,000-32,000 FEET
315 KIAS
MMO 32,000-41,000 FEET
0.85 MACH
RVSM REQUIRED EQUIPMENT
Autopilot (1) must be operational
Altitude Alerting System must be operational
Altitude Reporting Transponder (2)
One must be operational
Air Data Computers (2)
Two must be operational
COWL Icing ground operations
Cowl anti ice system must be on when the OAT IS 10c or below and visible moisture is present. also when operating on ground with snow, ice, slush standing water
COWL Icing flight operations
Icing conditions exist in flight at TAT of 10c or below and visible moisture is encountered except when SAT is -40c.
Engine cowl anti ice must be ON when:
in icing conditions of ICE is displayed by the ice detection system
WING icing ground operations
on for takeoff when oat is 5c or below and:
visible moisture in any form or runway is contaminated with surface snow, slush or standing water
when type II or IV anti ice fluid applied :
wing anti ice must only be selected ON if required just prior to thrust increase for takeoff
WING icing flight operations
in flight TAT 10c or below and visible moisture is encountered except when below SAT -40c
wing anti ice must be on when ICE annunciated or in icing at A/S below 230 KIAS
SLD supercooled large droplets
continued ops in SLD is prohibited.
detectable by ice accretion on side flight deck windows.
wing and cowl anti ice must be on in SLD conditions. leave icing conditions when side window icing occurs.
takeoff in icing
Takeoff prohibited with frost, ice, snow, slush adhering to any critical areas (wings, upper fuselage, horizontal stabilizer, vertical stabilizer, control surfaces and engine inlets
eng high power schedule switchlight
Use of ENGINES HIGH PWR SCHEDULE switchlight is prohibited
CRJ 700/900 eng operation limits
ITT 815C
oil pressure 182 PSI [7] 95 PSI after 10 min
normal takeoff pwr and max pwr (two eng) limited to 5 minutes
APR pwr (one eng) is limited to 10 minutes
ITT must be below 120C before attempting to ground start engine
COLD SOAK
when airplane exposed to -30C for more than 8 hours
engines motored 60 seconds and fan rotation verified before starting
thrust reversers must be actuated until deploy stow cycle 2 seconds or less
continuous engine ignition
required when:
takeoff/land contaminated runways
flight through moderate/heave rain/turbulence
flight in vicinity of thunderstorms
Flex takeoff prohibited when
wing or cowl anti-ice bleeds in use
runway contaminated with slush, snow, ice standing water
warnings or forecasts of windshear or downdrafts exist including LLWS
antiskid inop
eng cant achieve full rated thrust
engine restart in air ALT
21,000 MSL or below
T/O w/ over 500LBS in center tank
not permitted unless each wing tank has 4,400LBS or above or consult AFM
APU bleed air extraction
not permitted above 25,000FT
APU bleed air ENG start ground ops
no bleed air extraction limit. Each ENG may be started using the APU bleed air source
CRJ700 AFCS use
T/O minimum 600AGL
NP APP 400AGL
Precision GS below 3.5 degrees 80 AGL
GS 3.5 -4.0 degrees 120 AGL and prohibited if Airport ele greater than 4,000
CRJ900 AFCS use
T/O minimum 600 AGL NP APP 400 AGL Precision GS 3.5 or less 80 AGL steeper GS prohibited One engine 3.5 or less 110 AGL all other one eng app prohibited
AFCS ADC Source
coupled to autopilot must be the same as that coupled to the ATC transponder during flight in RVSM airspace
Taxi Lights
taxi lights must be switched off whenever plane stationary for excess of 10 minutes
nose wheel steering CRJ900
with nosewheel steering deferred CRJ900 extremely difficult to maneuver
ALT airport (general 3-37.1)
must have non gps app and the required navaid in service. Airplane must have operational equipment to use navaid
engine start/motoring full table
ENGINE START (GROUND) 1/2 90 seconds max 10 second cool down 3/5 90 seconds max 5 minute cool down
ENGINE START/MOTORING (FLIGHT)
1 120 seconds max 10 second cool down
2/5 60 seconds max 5 minute cool down
MOTORING (GROUND)
1 90 seconds max 5 minute cool down
2/5 30 seconds max 5 minute cool down
Startup n1 considerations
On startup do not exceed 75 percent n1 for 2 minutes and engine must remain idle until oil pressure in normal operating range
Max alt for emergency depressurization
15000ft to prevent damage to ears
Difference between crj700/900 engines
Crj900 has scalloped exhaust for noise abatement
Forward Cargo Weight
CRJ700 1,000lbs
CRJ900 850lbs
Center Cargo Weight
CRJ700 none only 1 compartments
CRJ900 850lbs
AFT Cargo Weigt
CRJ700 2610*/3740lbs
CRJ900 3740lbs
Name all 8 pressurized doors?***
1 main passenger door 2 crew escape hatch 3 galley service door 4 avionics bay door 5 forward cargo bay door 6 right over wing emergency exit 7 left over wing emergency exit 8 aft cargo bay door
For CRJ 900 add 2 more emergency exits and center cargo door
Which pressurized door is not displayed on ED2?
Crew escape hatch
What other major door is not displayed?
Aft equipment bay door and it is not pressurized
How much can the main cabin door stairs support at once?
4 people or 1000lbs
Besides ED2 how can main cabin door be verified closed?
Verify all green alignment pins on the inside door
What is the minimum oxygen pressure for a crew of 2 vs 3? (Jumpseater)
CRJ700 two requires 810psi three requires 1110psi
CRJ900 two requires 1180psi three requires 1630psi
Exception for frost on critical surfaces
1/8th inch on bottom wing due to cold soaked fuel
Frost on upper fuselage if surface features are distinguishable
How many minutes of light will the emergency lights provide?
10 minutes
What will cause emergency lights to illuminate when the switch is in the armed position?
A loss of EITHER the AC or DC essential bus
How long must the photo luminescent strips in the cabin be exposed to light prior to passenger boarding?
15 minutes
If primary nav bulb burns out how will secondary be activated
Automatically
When the seatbelt sign switch is in the AUTO position when will the sign illuminate automatically?
When the landing gear or flaps are extended of when the cabin altitude exceeds 10,000ft
What send signal for seatbelt sign to illuminate when the cabin altitude exceeds 10,000ft?
The CPAM
Engine cool down limitation?
After landing the engine must be at or near idle thrust for two minutes prior to shutdown
Engine thrust ratings
CRJ700 12,670lbs 13,790 in APR
CRJ900 13,360lbs 14,510 in APR
APR is automatic performance reserve
Normal N1 and N2 idle ranges
N1 20-25 percent
N2 55-65 percent
Which MELs can be extended
B and C can be extended 1 time for the same length as associated normally
Max oil temp for MCT
155c
CRJ700 dimensions
Length 106’ 8”
Wingspan 76’ 3”
Tail height 24’ 10”
How much room for 180 degree turn 75’
CRJ900 dimensions
Length 118’ 11”
Wingspan 81’ 6”
Tail height 24’ 1”
Minimum room for 180 degree turn 80’
Crosswind limits TO/LND
CRJ700
Takeoff 28kts
Landing 30kts
Crosswind TO/LND
CRJ900
Takeoff 35kts
Landing 32kts
