Flashcards in ERJ Limitations Deck (51):
After departing Chicago an emergency arises requiring you to divert to land immediately. Current landing weight shows 80,100lbs. Can you land?
Max landing weight is 74,957lbs
For safety, the best course of action would be to burn off fuel by holding, if possible, and below MLW.
- declare an Emergency.
- follow MX procedure for overweight landing
Takeoff data shows a zero fuel weight of 70,000lbs. Can you depart?
(MZFW) Maximum Zero Fuel Weight is 69,866
You must remove cargo, bags, or pax
ATC reports a smooth ride at FL430. Can you take it?
Max altitude: FL410
An emergency develops requiring you to land at the nearest suitable airport. What is the highest/lowest elevation that airport can be?
altitude limits for T/O, landing, and ground start:
The temperature says -35 degrees C on the ATIS for Calgary. Can you land?
(Limits: -40 degrees to + 54 degrees C)
You may land. However, the the aircraft may not depart without further MX inspection if the temperature dips below -40 degrees C.
What's the Max ISA temp allowable for a flight to be able depart?
Max ISA+35 degrees C
ATC requests speed reduction to 210kts for descent on the arrival. You are currently at 23,000ft and 230kts when PF requests Flaps 1. What do you do?
Max Alt for flap extension: 20,000ft
Max Speed Flaps 1: 230kts
Max speed Spoilers: none
Advise the PF you are too high and fast for flaps. To prevent exceeding a/c limitations.. advocate the use of the speed brake to slow until below at least 20,000ft and 230kts. (220kt buffer recommended)
You are high and fast on the approach when PF requests "gear down". Current airspeed indicates 260kts. What do you do?
Max Vlo for Ret and Ext: 250kts
Max Vle: 250kts
Advise the PF you are too fast (250kt limit) for gear extension. Advocate the use of the speed brake in order to slow or execution of missed approach to prevent an "unstabilized" approach at 1000ft afe
ATC requests .83 Mach for spacing. What do you do?
Max Mmo: .82
- Advise ATC "unable" / .82 max
On approach PF commands flaps 5. Current speed is 180. What do you do?
Max speed flaps 4 and 5: 180kts
Advocate speed reduction before application
- (to not exceed limitation)
Advocate: leveling off to slow and configure or go missed
What is the max speed you should land with during a ZERO flap landing emergency?
Max tire ground speed: 225mph
ATIS and Avionics indicate a 15kt tailwind can you
Max tailwind t/o or landing : 10kts
What kinds of conditions may the 175 operate?
KINDS OF OPERATIONS:
This airplane may be flown DAY and NIGHT in the following conditions, when the appropriate equipment and instruments required by airworthiness and operating regulations are approved, installed and in an operable condition:
− Visual (VFR).
− Instrument (IFR).
− Icing conditions.
− Category I and II.
What is minimum flight crew required to operate?
What is the maximum positive and negative Load Factor (G) for a clean configuration? Dirty (flaps)?
Positive: 2.5 g. 2.00 g
Negative:- 1.00 g. 0g
What's the maximum slope a runway may have for t/o landing?
+/- 2 degrees of slope
After running the #'s, T/O data shows a calculated weight of 85,700lbs.. Can you take-off?
- max t/o weight is 85,517lbs
- However, max ramp weight is 85,870lbs (within limits). You may taxi out and hold in order to burn off fuel, but not depart till below 85,517
Can you use the Terrain Awareness Display function on the EGPWS for navigation?
Navigation is not to be predicated on use of the terrain function
What should done when landing at an airport not in the database or during QFE operations when GPS data is unavailable or Inop?
Manually INHIBIT the EGPWS function
- Press-in: "GND PROX TERR INHIB" button
*This prevents unwanted alerts & warnings*
After complying with an ATC vector and altitude you hear an aural EGPWS alert. Can you deviate from that clearance?
Pilots are authorized to deviate from their current Air Traffic Control (ATC) clearance to the extent necessary to comply with an EGPWS warning.
You arrive at a cold dark aircraft. OAT is well below freezing. What considerations/limitations should be taken into account during power up and Pre-flight?
1. Min Battery temp: -20°C
- Min Voltage: 22.5V (>21V to charge)
2. APU min temp: -54°C
3. Min Fuel Temp: -40°C
4. Min Hyd. Reservoir Temp for ENG start: -18°C
5. Min Oil Temp: -40°C / 25 PSI
6. TAKEOFF DATASET: ALL or ENG
7. Min Temp T/O and Land: -40°C
8. Cold WX Pre-flight/Tactile check: critical surfaces free of frozen contaminants.
QRH requires you to start the APU in-flight. What must be considered before starting? What if starting for Bleeds / ENG start?
1. Min/Max Temp: -54°C to ISA+35°C
2. Max Alt to Start: 30,000ft
3. Max to Operate: 33,000
4. Max Bleed use: 15,000ft
5. Max Alt Eng. Start: 21,000
ITT reaches 820°C during engine start. What temp was exceeded and must be accomplished before starting again?
Eng start was aborted MANUALLY by Pilot or Automatically by Fadec for "Hot Start". Limit exceeded. Call to MX must be made.
1. Max Eng. temp: 815°C
Pilot aborts Eng start #1. What must be accomplished before reattempting?
Reference: QRH: Non-Annunciated Procedures
"Abnormal Engine Start"
1. Max Eng. temp: 815°C
#1,2 - 90 seconds ON , 10 seconds OFF
#3thru5 - 90 seconds ON , 5 minutes OFF
3. Dry Motoring:
#1 - 90 seconds ON , 5 min OFF
#2and3 - 30 seconds ON , 5 min OFF
- Consider waiting 10 seconds before restarting or dry motoring to cool the engine. (If directed by the QRH)
What are the dimensions of the ERJ175?
Aircraft has a differed PACK what considerations pertain to flight?
Max Single PACK Operations: 31,000ft
When there is no positive increase of N1 before ____ % starter cutout: What must be accomplished?
Engine start MUST be MANUALLY aborted.
-N1 must indicate positive rise within 30seconds of start
-Potentially caused by Tailwind.
Weather is developing at our destination. What's the maximum fuel we can put on?
After an extended delay taxiing out single engine, a "fuel imbalance" message appears on the EICAS. What must be accomplished prior to departure?
It is permissible to T/O and Land with a FUEL IMBALANCE message. As long as the actual imbalance does not exceed 794lb limit.
X-feed MUST be OFF for T/O
How long should we wait after power-up before starting APU?
30 seconds after EICAS energizes and messages populate
How long can the aircraft be left unattended w/APU running?
5 minutes - SkyWest limit
During walk around you notice the HP cart connected and operating w/APU running. Any concerns?
Simultaneous use of HP cart and APU is PROHIBITED
-potential to over pressurize
- HP cart is generally utilized when APU is deferred
ATC clears flight for T/O. Taking the runway PF advances throttles. PM notices ATTCS OFF. How? May the PF continue T/O without ATTCS?
No white "TO" on FMA
- Captain forgot to ARM by pressing A/T button
- Confirm Runway assignment and press "A/T" button
- T/O with ATTCS OFF is NOT AUTHORIZED
Are we authorized to use thrust reverser to powerback from the gate in the event of no tug?
No, PROHIBITED by SOPM limitation
May we use thrust reverser to slow aircraft on a taxi way?
No, PROHIBITED by SOPM limitation
After deploying thrust reversers can we T/O again?
GO-Around maneuver MUST NOT be attempted after thrust reverser deployment.
When can we advance thrust levers out of reverse?
Must wait for Green/Amber REV icon before advancing
What is the lowest altitude we may use the autopilot after T/O or on a Precision/NonPrecision approach?
P - 50'
When are the TAT, SAT, and TAS considered valid?
Can we use Radar Altitude for a Cat-1 approach?
Baro-metric mins must be used for ALL cat-1 approaches
RA for CAT II
Can we shoot a BackCourse approach using the IESS?
Consideration in ELECTRICAL Emergency mode
Can you accept an RNP approach clearance?
No, not authorized SkyWest
Can you use FMS SPEEDS single engine?
No, prohibited during engine failure
- Auto-throttles may be ON, but in Manual Mode
Consideration after engine failure on T/O or in-flight
ATC reporting 35kt x-wind. Can you do a static T/O on a short runway?
No, limit 30kts for static
Due to compressor stall possibility
Can you depart a WET runway with a 30kt x-wind?
WET Limit: 31kts
Should you depart a dry runway with a 40kt x-wind?
Dry limit: 38kts
However, Max X-winds are RECOMMEND
Should you depart a compacted snow runway with a 20kt X-Wind?
compacted snow limit: 20kts RECOMMENED
Should you depart a slush contaminated runway with a 20kt X-Wind?
Standing water/slush/wet and dry snow limit: 18kts
Should you depart an icy runway with a 15kt x-wind?
Ice limit: 12kts
What speed must we fly above during an Electrical Emergency situation? What the max speed?
Vrat min: 130kts
Recommended: 150 for buffer