Limits (2019) Flashcards
Flaps 5 Speed Limit
180
FLEX takeoff thrust procedures are NOT allowed on WET runways UNLESS…
WET TLR data is used.
Speed restriction (aircraft) below 8,000’
300 kts
Max crosswind for takeoff and landing (CAT 1) - [DRY RWY]
28 kts (sustained) w/ gusts to 38
Engine ITT Start Limits
815C
Maintenance is required if the battery voltage is less than -
21 v
MMO
.82M
Icing Conditions - On The Ground (< 5C)
The MCDU TO DATASET MENU must be set to ALL when SAT is less than 5C and: 1. If there is any possibility of encountering visible moisture up to 1700’ AFE OR 2. Operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush may be ingested by the engines, or freeze on engine nacelles, or engine sensor probes.
What Mins MUST be used for all CAT I approaches?
Baro Alt Minimums
Max DV window open speed
160 kts
Fuel Density
6.767 lbs/gal
Max crosswind for takeoff and landing (CAT 1) - [COMPACTED SNOW]
20 KTS
APU Start up during engine operations
Before Starting the APU after an Engine is Shutdown: Wait for engine to go below… 30% N2 (to ensure that BATT 2 is available to the airplanes electrical network as a backup and not isolated for the APU start)
When airplane is stopped, TAXI and LANDING LIGHTS must be -
OFF
Minimum RAT speed
130 kts
E175 EWT Length
103’11
Max operating Altitude
41,000’ (design altitude limit)
Minimum height to engage AP on go-around
400’ AGL (AP may be engaged during go-around at or above 400’ agl provided GA mode is active).
The MCDU TO DATASET MENU must be set to ALL when:
SAT is less than 5C and:
1. If there is any possibility of encountering visible moisture up to 1700’ AFE OR
- Operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush may be ingested by the engines, or freeze on engine nacelles, or engine sensor probes.
Flaps 3 Speed Limit
200
Engine warm up and cool down period
2 minutes
Minimum AP height for precision approach
70’ AGL (AP may remain engaged during a go-around from a coupled ILS approach if the go-around is initiated at an altitude at or above 70’)
Special Instrument approach (AP engagement)
as Specified in the procedure (min AP altitude)
E175 MLW
75,177#
Maximum taxi speed - straight WET
30 kts
Maximum Altitude for APU GEN use
33,000’
The MCDU TO DATASET MENU must be set to ENG when:
SAT is 5C to 10C and:
1. If there is any possibility of encountering visible moisture up to 1700’ AFE OR
- Operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush may be ingested by the engines, or freeze on engine nacelles, or engine sensor probes.
Green Dot speed is (2 items)
Drift Down Speed when SLAT/FLAP retracted and engine is failed and 1.3 g maneuvering margin with engines running - green dot does not change with bank angle nor turbulence
Minimum AP height for non-precision approach
MDA
VLE
250
Engine Starter Limits (Starts 1 and 2) on GROUND
90 seconds w/ 10 second cool down time (the max cumulative start attempt is 90 seconds (motoring plus start time)
Minimum Crew O2 Qty - AMBER
Cautionary Operating Range (dispatch is not allowed) [<842 psi @21C]
E175 MTOW
89,000#
Cabin Pressurization Limits - Above 37,000’
8.3 psi
Fuel Specs (Type)
Jet A - Jet A1
Minimum Crew O2 Qty - GREEN
Normal Operating Range (min for dispatch with 3 crew members on the flight deck) [1850-1150psi @21C]
To avoid power transfer interruptions when connecting or disconnecting and electrical source (NBPT)
Confirm power transfers on the Electrical Synoptic page OR wait 10 seconds.
ADS 3 is not considered RVSM compliant in case of?
Loss of SideSlip Compensation (ie ADS3 SLIPCOMP FAIL) displayed.
Minimum battery voltage to start the APU
21v
Max Tailwind Takeoff and Landing (CAT 1)
10 kts (when computing crosswind and TW consider entire gust factor)
Max allowable Load Factor (Flaps Down)
2.0 to 0 g
Max crosswind for takeoff and landing (CAT 1) - [WET SNOW]
18 KTS
E175 EWT MTWO
85,517#
Maximum Altitude for APU Bleed Air
15,000’
Max allowable Load Factor (Flaps Up)
2.5g to -1.0 g
Powerback Operations are
PROHIBITED
Maximum altitude for flap extension
20,000’
The APU may not be started when?
During Refueling/Defueling ops
Maximum Temp for takeoff and landing
ISA +35C
VOR Flight Director Mode Limits
The VOR Flight Director mode is prohibited. this VOR FD mode is inhibited. VOR navigation using the FD MUST be predicated on HDG mode and VHF (green) needles or LNAV mode (Magenta).
Icing Conditions in Flight
Icing conditions exist in flight whenever the Static Air Temperature (SAT) on the ground or for takeoff, or Total Air Temperature (TAT) in flight, is 10C or below AND visible moisture in ANY FORM is present (such as clouds, fog with visibility of 1 mile or less, rain, snow, sleet and ice crystals).
For TO and GO-Around, LNAV and VNAV must not be armed below
400’ agl
Why wait for engine to go below 30% N2 before starting the APU?
to ensure that BATT 2 is available to the airplanes electrical network as a backup and not isolated for the APU start
The engines must be idle by
60 kts
Minimum Crew O2 Qty - CYAN
Normal Operating Range (min for dispatch with 2 crew members on the flight deck) [1149-842 psi @21C]
Cabin Pressurization Limits - Up to 37,000’
7.8 psi
Max headwind for CAT 2 approach
25 kts
For takeoff, the ATTCS must be…
ON
Max crosswind for takeoff and landing (CAT 1) - [DRY SNOW]
18 KTS
Minimum runway/taxiway width for 180’ turn (E170)
54’ 8”
Hydraulic System Cold Weather Limitation
A hydraulic system warm up must be accomplished before starting the engines if the reservoir temperatures are BELOW (- 18C)
E175 EWT MLW
74,957#
Maximum Altitude for APU Start
30,000ft
Engine Starter Limits (Starts 3-5) IN FLIGHT
120 seconds w/ 5 minute cool down time (after 5 sequential start attempts, a cycle may be repeated following a 15 minute cool down period)
Engine Starter Limits (Starts 1 and 2) IN FLIGHT
120 seconds w/ 10 second cool-down time (120 seconds is motoring plus start time)
Approved Runway Surface
Paved
Ice Detector Fail Limitation
If either one OR both ice detectors are failed, the crew MUST set the MODE SELECTOR to ON when icing conditions exist OR are anticipated below 10C TAT with visible moisture.
Minimum enroute height for AP
500’ AGL
Flaps 4 Limitation
Flaps 4 may be used for takeoff/go-around only. THE USE OF FLAPS 4 DURING THE APPROACH AND LANDING REGIME IS PROHIBITED.
Assumed Temperature Takeoff (FLEX) Thrust Limitations
An assumed temperature (FLEX) takeoff is NOT allowed if ANY of the following conditions exist:
- The runway is contaminated.
- The antiskid is inop
- The Takeoff performance section of the takeoff report does not include FLEX takeoff data
- Compass Airport information Pages (CCI) prohibit an assumed temperature takeoff.
- Any time LLWS is reported or present.
- Any time there is significant weather which may produce wind shear (i.e. Thunderstorms)
- The PIC determines the conditions for an assumed temperature takeoff are unsafe.
Maximum Air Temp for APU Start
Matches Airplane envelope (ISA +35C)
Cabin Pressurization Limits - Max Differential Press for Takeoff and Landing
.2 psi
Maximum Runway Slope
+/- 2%
Minimum altitude (Takeoff and Landing)
- 1,000’
Cabin Pressurization Limits - Max Differential Overpressure
8.7 psi
If either one OR both ice detectors are failed, the crew MUST…
set the MODE SELECTOR to ON when icing conditions exist OR are anticipated below 10C TAT with visible moisture.
LNAV may not be engaged during an engine failure on takeoff or a SE go-around unti…
the BANK input on the GP is deselected
VOR navigation using the FD MUST be predicated on?
HDG mode and VHF (green) needles or LNAV mode (Magenta).
APU Starter Duty Cycle (start #1 and 2)
60 seconds (max time) 60 seconds (cool down time)
E175 EWT Wing Span
93’11
Minimum battery temperature for an APU start is
- 20C
Max crosswind for takeoff and landing (CAT 1) - [SLUSH]
18 KTS
APU Starter Duty Cycle (start #3)
60 seconds (max time) 5 minutes (cool down time)
Minimum Flight Speed (All Altitudes)
Except as described in normal/abnormal/emergency procedures, the airplane may never be operated below the ‘green dot’ speed.
Example of Power Transfers
- Stopping APU after engine start 2. GPU switch is pushing in or APU power available before shutting down the engine(s). 3. After engine shutdown and below 30% N2 - before starting APU.
APU time limit for operating in the amber range.
There is NO TIME LIMITATION for operating the APU on ground or in flight in the amber range between 662C and 717C
Max crosswind for takeoff and landing (CAT 1) - [STANDING WATER]
18 KTS
Maximum Altitude for APU Assisted Engine Start
21,000’
Reverse Thrust Limits
Engine must be idle by 60 kts and out of reverse by 30 kts
Engine Starter Limits (Starts 3-5) on GROUND
90 seconds w/ 5 minute cool down time (after 5 sequential start attempts, a cycle may be repeated following a 15 minute cool down period)
E175 Length
103’11
Icing Conditions - On The Ground (5-10C)
The MCDU TO DATASET MENU must be set to ENG when SAT is 5C to 10C and: 1. If there is any possibility of encountering visible moisture up to 1700’ AFE OR 2. Operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush may be ingested by the engines, or freeze on engine nacelles, or engine sensor probes.
Flaps 4 Speed Limit
180
Crossfeed Switch Limitation
During takeoff and landing the crossed selector knob must be OFF
Minimum temperature for TAKEOFF
-40C
Maximum taxi speed - straight CONTAMINATED
15 kts
Max crosswind for takeoff and landing (CAT 1) - [RUNWAY WITH ICE] (including wet ice)
12 KTS
Maximum Altitude (Takeoff and Landing)
8,000’
Flaps 2 Speed Limit
215
Minimum height to engage autopilot on takeoff
ACCELERATION ALTITUDE - (AP may be engaged on takeoff at or above acceleration altitude, after horizontal & vertical FD modes are selected because the FD takeoff mode (TO) sometimes reverts to FPA after AP engagement).
For takeoff and in flight, the TAXI NOSE LIGHT must be…
OFF
Maximum Turbulent Air Penetration Speed (Greater than or equal to 10,000’ MSL)
270 kts or .76M whichever is less
Maximum Turbulent Air Penetration Speed (Less than 10,000’)
250 kts
Maximum Useable Fuel
20,785#
Max crosswind for a static takeoff
30 kts (due to engine stall possibility)
The VOR Flight Director mode is?
Prohibited. his VOR FD mode is inhibited. VOR navigation using the FD MUST be predicated on HDG mode and VHF (green) needles or LNAV mode (Magenta).
Before Starting the APU after an Engine is Shutdown:
Wait for engine to go below… 30% N2 (to ensure that BATT 2 is available to the airplanes electrical network as a backup and not isolated for the APU start)
Max crosswind for CAT 2 approach
12 kts
Maximum Fuel Imbalance in Flight
794#
Back Course approaches using the IESS are?
Prohibited.
Minimum runway/taxiway width for 180’ turn (E175)
59’ 2”
VLO for retraction
250
VMO
320 kts
Max crosswind for takeoff and landing (CAT 1) - [WET RWY]
28 kts
Prior to commencing and during the final approach, what must be visible
APPR indicator on the PFD (if not visible and the runway visibility indications are not observed the crew should request a missed approach)
Flaps 1 Speed Limit
230
Max crosswind for takeoff and landing (CAT 1) - [DRY SNOW]
18 KTS
Freezing Rain and Freezing Drizzle Limitations (SLD)
If abnormal ice formation is observed on areas of the airplane that do not usually accrete ice, the flight is operating in a SLD condition. Exit the SLD condition as soon as possible.
Max altitude for single pack operation
FL 310
Minimum Air Temp for APU Start
-54C
A maintenance inspection is required for landing below…
-40C
Maximum Tire Ground Speed
195 kts
Maximum Taxi Speed - Straight DRY
30 kts
VLO for extension
250
E175 Wing Span
85’4
Flaps FULL Speed Limit
165
Cabin Pressurization Limits - Max Differential Negative Pressure
- .5 psi
Minimum Fuel Tank Temperature
- 40C
Maximum Speed to operate the windshield wipers
250kts
Max tailwind for CAT 2 approach
10 kts
IESS Limits
Back Course approaches using the IESS are prohibited.
An assumed temperature (FLEX) takeoff is NOT allowed if
ANY of the following conditions exist:
- The runway is contaminated.
- The antiskid is inop
- The Takeoff performance section of the takeoff report does not include FLEX takeoff data
- Compass Airport information Pages (CCI) prohibit an assumed temperature takeoff.
- Any time LLWS is reported or present.
- Any time there is significant weather which may produce wind shear (i.e. Thunderstorms)
- The PIC determines the conditions for an assumed temperature takeoff are unsafe.
Engines must be out of reverse by
30 kts