Limitations Flashcards
What are the general structural limitations (175LR)?
AOM v4 2-05
SOP 2-2.1
Max ramp weight: 85,870
MTOW: 85,517
MLW: 74,957
MZFW: 69,886
Max AFT cargo: 2,535
Max FWD cargo: 3,306
What are the general speed, altitude, temperature limitations?
AOM v 4 2-10
SOP 2-3.1
VMO: 330 kts (SL - 8,000); 320 kts (10,000 to Mach transition); MMO = .82M
VA: 240 kts
VB: 250 kts (below 10,000); 270 kts/.76M (above 10,000)
Max altitude ops: 41,000’
Max t/o & lndg: 8,000’ or ISA +/- 35C
Min temperature t/o & lndg: -40C
Runway slope max 2%
What are the flaps limitions?
AOM v4 2-10
SOP 2-3.4
Max flaps/slats extended: 20,000’; enroute prohibited
Flaps 1: 230 kts
Flaps 2: 215 kts
Flaps 3: 200 kts
Flaps 4, 5: 180 kts (go-around Flaps 2)
Flaps full: 165 kts (go-around Flaps 4)
CAT II approach: mandatory Flaps 5
What are the landing gear limitations?
AOM v4 2-10
SOP 2-3.3
VLOe, VLOr, VLE: 250 kts
Tire ground speed: 195 kts
What are the windows-ish limitations?
AOM v4 2-10, 2-50
SOP 2-3.3
DV max speed 160 kts
Max wiper speed: 250 kts (SW)
What are the wind limitations?
AOM v4 2-10
SOP 2-3.4
Dry runway: 38 kts
Wet runway: 31 kts
Compacted snow runway: 20 kts
Standing H20/slush/wet or dry snow: 18 kts
Iced runway: 12 kts
Max tailwind t/o & lndg: 10 kts (AOM) or 15 kts (SOP)
Static takeoff not recommended > 25 kts crosswind
What are the fuel limitations?
AOM v4 2-36
SOP 2-4.3
Crossfeed: Selected off for takeoff and landing
Tanks capacity: 3094 gal (20935 lbs)
Max permitted imbalance: 794 lbs
Min tank temperature: -40C
What are the APU operational limits?
AOM v4 2-38
SOP 2-4.3
Wait 30 seconds after EICAS is energized to start APU
Max unattended time: 5 minutes (SW)
Simultaneous use of APU bleed and HP cart prohibited
Start:
1st and 2nd attempt: 60 sec OFF
3rd attempt: 5 min OFF
Temp & Altitude Limits:
-54C min and ISA+35C (start & continuous)
Max altitude 30,000’ (start)
Continuous Operations:
Max altitude and electrical 33,000’
Max altitude leeds 15,000’
Max altitude airstart 21,000’
What are the engine limitations?
AOM v4 2-40
SOP 2-4.2
Time, temp, & speed:
Minimum oil pressure & temperature to start: 25psi, -40C,
Dry motoring:
1st start: 90 sec ON then 5 min OFF
Starts 2-5: 30 sec ON then 5 min OFF
Normal start:
1st & 2nd start: 90 sec [ground] or 120 sec [air] ON then 10 seconds OFF
Starts 3-5: 90 sec [ground] or 120 sec [air] ON then 5 minutes OFF
No reduced takeoffs on contaminated or wet [unless performance adjusted] runways
What are the pressurization limits?
AOM v4 2-48
SOP 2-4.4
Max differential
7.8 psi to 37,000’ or 8.34 psi above 37,000
Overpressure: 8.77 psi
Negative pressure: -0.5
T/o and lndg: 0.2 psi
Single pack ops: 31,000’
What are the icing conditions limitations?
AOM v4 2-50
SOP 2-4.5
Ground:
TO DATA MENU set to ENG if 5C < OAT < 10C and any visibile moisutre below 1700 AFE or ground contamination
TO DATA MENU set to ALL if OAT < 5C and any visibile moisutre below 1700 AFE or ground contamination
Flight:
If in AUTO, leave it be!
Or ON, if one of both ice detectors failed and TAT < 10C [flight]
or OAT < 10C [ground] in visibile moisture or ground contamination
What are the battery limitations?
AOM 14-05-15
SOP 2-4.2
Min voltage: 22.5V
Min temperature: -20C (APU start)
What are hydraulics, brakes, and thrust reverser limitations?
AOM v4 ?
SOP 2.4.4/5
Min hydraulic reservoir temp for ENG start: -18C
Brake temperatures must be in green for t/o
After selected reverse thrust, do not move into forward thrust range until REV icon is amber or green
Go arounds after thrust reverser deployment prohibited
Use of thrust reversers during normal taxi or for power back prohibited
What are the autoflight limitations?
AOM v4 14-3-5
SOP 2-4.6
Autopilot
Min engagement: 400’ AFE
Min use: 50’ AFE
Min use: MDA (non-precision approach)
What are the instrument limitations?
AOM v4 2-30, 2-64
SOP 2-4.6
Navigation
TAS/TAT/SAT information valid only above 60 kts
Barometric altimeter minimums must be used for CAT I approaches
Backcourse using IESS prohibited (<<–that’s a bad day)
EGPWS
Navigation is not to be predicated on Terrain Awareness System
Predictive EGPWS functions should be inhibited at nondatabase airfields &
during QFE operations w/ GPS is inoperative or database unavailable
FMS
RNP approaches not authorized (SW)
FMS speed mode prohibited during OEI flight