Aircraft Limitations Flashcards
Types of Operations (7)
SOP 3-1
- Visual Flight (VFR)
- Day and night
- Instrument
- Icing conditions
- CAT I and II
- RVSM
- EOW (E-175 when properly equipped)
Certification Basis - what category?
SOP 3-1
Transport category (14CFR 25 and 36)
Max recommended crosswind
SOP 3-4
Dry: 38 knots Wet: 31 knots Compacted snow: 20 knots Standing water/slush: 18 knots Wet Ice (no melting): 12 knots
Max Cargo Compartment Loads E170/E175
SOP 3-3
E170: 3020 fwd, 2271 aft
E175: 3307 fwd, 2535 aft
Min flight crew
SOP 3-4
Pilot and copilot
Max tailwind component
SOP 3-4
10 knots
Max RWY slope
SOP 3-4
+/- 2.0%
Runway surface type
SOP 3-4
Paved
Flap maneuvering load limits
Flaps up
SOP 3-4
-1.0G to 2.5G
Flap maneuvering load limit
Flaps 1 through full
SOP 3-4
0.0G to 2.0G
Max operating altitude
SOP 3-4
41,000ft
Max takeoff or landing elevation
SOP 3-4
8,000ft
Max ambient air temp for takeoff or landing
SOP 3-4
52C
Max flap extension altitude
SOP 3-4
20,000ft
Min ambient air temp for t/o or landing
SOP 3-4
-40C
V(a) definition and speed
(design maneuvering speed)
SOP 3-8
Full application of rudder and aileron controls, as well as maneuvers that involve angle of attack near the stall, must be confined below 240 KIAS (C)
Warning: Rapid and large alternating control inputs, especially in combination with large changes in pitch, roll, or yaw (e.g. large sideslip angles) may
result in structural failure at any speed, even below VA.
Maximum Takeoff Weight (weight at brake release or at start of the takeoff roll) is limited by the most restrictive of the following: (5)
SOP 3-2
- Maximum Takeoff Weight (Climb Limited)
- Maximum Field Length Limited Takeoff Weight
- Maximum Certificated Takeoff Weight
- Obstacle clearance, enroute, and landing limitations
- Brake energy limit weights
Maximum Landing Weight is limited by the most restrictive of the following: (3)
SOP 3-2
- Maximum approach and landing weight (runway length plus obstacle, altitude, and temperature, & including limitations for inoperative equipment)
- Maximum Landing weight (climb limited)
- Maximum certificated landing weight
Vmo FL100-250
SOP 3-7
320 KIAS
Vmo, SFC - 8000
SOP3-7
300 KIAS
Mmo
SOP 3-7
.82M
Max airspeed for RAT operation
SOP
Vmo/Mmo
Design Maneuvering Speed WARNING
Rapid and large alternating control inputs, especially in combination with large changes in pitch, roll, or yaw (e.g. large sideslip angles) may
result in structural failure at any speed, even below VA.
Turbulent air penetration speed (2)
SOP 3-6
Above 10K: 270 KIAS/.76M (whichever is lower)
Below 10K: 250 KIAS
Max tire groundspeed
SOP 3-6
195 knots
Max windshield wiper operations speed
SOP 3-9
250 KIAS
VLO and VLE
SOP 3-6
250 KIAS
VFE 1
SOP 3-6
230 kias
VFE 2
SOP 3-6
215 kias
VFE 3
SOP 3-6
200 kias
VFE 4
SOP 3-6
180 kias
VFE 5
SOP 3-6
180 kias
VFE FULL
SOP 3-6
165 kias
“Every effort will be made to extend the flaps approaching _____, but in no case below _____, to optimize flap life and fuel consumption.”
SOP 3-6
Every effort will be made to extend the flaps approaching Green Dot to Green Dot + 10, but in no case below Green Dot, to optimize flap life and fuel consumption
Flap operating rules: (4)
SOP 3-12
- Max altitude 20,000ft
- Enroute use of flaps prohibited (C)
- No holding in icing conditions with flaps extended (C)
- Flaps 4 for approach and landing is prohibited (C)
In the SOP, the symbol (C) indicates what?
SOP 3-1
(C) indicates a company restriction that is more restrictive than the AFM limitation.
Temperature limitation for the automatic operation of the anti-icing system
SOP 3-9
There is no limitation for the automatic operation of the anti-icing system
Definition of icing conditions (3)
SOP 3-9
Icing conditions exist when Static Air Temperature (SAT) on the ground/takeoff or Total Air Temperature
(TAT) in flight is:
• 10°C or below; and
• Visible moisture is present, in any form, such as clouds, fog with visibility of one mile or less, rain, snow, sleet and ice crystals; or
• When operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush may be ingested by the
engines; or freeze on engines, nacelles, or engine sensor probes
Engine and Wing Anti-Ice System Operation on the Ground: When is it required?
SOP 3-9
During taxi out and takeoff, the MCDU DATASET MENU must be set to ALL when SAT is 10°C or below and icing
conditions exist or are anticipated. (C)
Engine and Wing Anti-Ice System Operations On the Ground
WARNING
SOP 3-9
On the ground, do not rely on visual icing evidence or ice detector actuation to turn on the engine antiicing
system. Use the temperature and visual moisture criteria specified in this section. Delaying the use of the Antiicing system until ice build-up is visible from the flight deck may result in ice ingestion and possible engine damage or
flameout
Engine and Wing Anti-Ice System Operations In Flight
WARNING
SOP 3-9
Delaying the use of the anti-icing system until ice build-up is visible from the flight deck may result in ice
ingestion and possible engine damage and/or flameout
Engine and Wing Anti-Ice System Operations In Flight: When is it required?
SOP 3-9
The engine and wing anti-ice systems operate automatically in case of ice encounter when the ICE PROTECTION Mode
Selector is in AUTO. 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 at or below 10°C TAT with visible moisture.
Max usable fuel quantity per tank
SOP 3-10
10,393 lbs
Unusable fuel per tank
SOP 3-10
75 lbs
Aircraft max fuel capacity (both tanks, usable plus unusable)
SOP 3-10
20,936 lbs
Fuel Quantity
NOTE regarding fuel density
SOP 3-10
Fuel density of 6.767 lbs/gal is used in these limitations. Different fuel densities may be used provided the volumetric limits are not exceeded.
Primary fuel type (2)
SOP 3-10
- Jet A (ASTM D1655
- Jet A-1 (ATSM D1655)
Alternate fuel type
SOP 3-10
JP-8 (MIL-T-83133A)
Authorized Brazilian Spec fuel
SOP 3-10
QAV1
Min fuel tank temp
Sop 3-10
-37C
Max fuel imbalance
SOP 3-10
790 lbs (C)
Restriction on use of crossfeed
SOP 3-10
The XFEED Selector must be set to OFF during takeoff and landing
Max differential pressure
SOP 3-11
8.4psi
Max differential overpressure
SOP 3-11
8.8 psi
Max differential negative pressure
SOP 3-11
-0.5 psi
Max diff pressure for t/o or landing
SOP 3-11
0.2 psi
Max altitude for single pack operation
SOP 3-11
31,000ft
Brake cooling limitation
SOP 3-11
Do not take off with amber brake temp indicators (C)
A/P min engagement height
SOP 3-18
400ft AGL
A/P min use height, coupled ILS approach
SOP 3-18
50ft AGL
A/P min use height, non-precision approach
SOP 3-18
MDA
NOTE regarding auto flight min altitudes
SOP 3-18
The E170/175 is certified with a “zero-loss” auto flight control system. This is why there is a 50 foot AFL limit on coupled ILS approaches (14
CFR 121.579)
What power plants are on the aircraft?
SOP 3-20
- Two GE CF34-8E5
Max N1
SOP 3-20
99.5%
Min and Max N2
Sop 3-20
58.5 - 99.4%
ITT Start temp limit
SOP 3-20
815 C
Normal T/O and GA ITT limits
SOP 3-20
965 C (1st 2 mins) 949 C (next 3 mins)
Max T/O and GO ITT limits
1006 C (1st 2 mins) 990 C (next 3 mins)
Max CON ITT limit
SOP 3-20
960 C
Oil pressure operating range
SOP 3-20
25 - 95 psi
Max continuous oil temp limit
SOP 3-20
155C
Max transient oil temp limit
163 C for up to 15 mins
Restrictions on use of thrust reversers
SOP 3-12
- Approved for ground use only
- Intended for use during rejected takeoffs and full stop landings
- Do not attempt a go-around maneuver after deployment of the thrust reversers
- Power back operations using thrust reversers are prohibited
- Must be stowed below 60 KIAS
- After selecting reverse thrust, do not move the thrust levers into the forward thrust range until the REV icon on the EICAS is shown in amber or green
EICAS limit markings: What does the color RED signify?
SOP 3-21
Max and min limitations
EICAS limit markings: What does the color AMBER signify?
SOP 3-21
Caution range
EICAS limit markings: What does the color GREEN signify?
SOP 3-21
Normal operating range
CAUTION regarding EICAS engine limit markings
SOP 3-21
If the EICAS engine limit markings show more conservative limits than those specified in the engine operational limits (above), the limit
markings on the EICAS must be used
Engine warmup / cool down
SOP 3-20
- Before applying takeoff thrust, allow the engines to warm up for a minimum of two (2) minutes
- A two (2) minute cool down must be observed prior to shutting down an engine
Reduced thrust must not exceed ___ of full takeoff thrust
SOP 3-21
25%
Reduced thrust takeoffs are not allowed when?
SOP 3-21
Use of reduced takeoff thrust procedures is not allowed on runways contaminated with standing water, slush, snow or ice and are not allowed on wet runways unless suitable performance accountability is made for the increased stopping distance on the wet runway surface
NOTE regarding wet runway analysis for reduced thrust takeoffs
SOP 3-21
The use of “Wet” runway analysis numbers takes into account the increased stopping distance which occurs on wet runways.
Limitation on takeoff with ATTCS OFF
SOP 3-21
Takeoff with the Automatic Takeoff Thrust Control System (ATTCS) OFF is not authorized.
Engine starter dry motoring duty cycles
SOP 3-22
1st attempt: 90 secs ON, 5 mins off
2nd- 5th attempt: 30 secs ON, 5 mins off
15 min cool down
APU start temp range
SOP 3-23
-54C to ISA+35
Max APU start altitude
SOP 3-23
30,000 ft
APU operation temp range
Sop 3-23
-62C to ISA+35C
APU max electrical altitude
SOP 3-23
33,000ft
APU max bleed altitude
SOP 3-23
15,000ft
APU max engine start assist altitude
SOP 3-23
21,000ft
APU max rotor speed %
Sop 3-23
108%
APU max start EGT
SOP 3-23
1032 C
APU Max continuous EGT
SOP 3-23
717 C
APU manufacturer and model
SOP 3-23
Sundstrand APS 2300
APU starter duty cycle
1st and 2nd attempt: 60 secs ON, 60 secs OFF
3rd: 60 secs ON, 5 mins OFF
Deviation from ATC clearance for TCAS RA
SOP 3-13
Pilots are authorized to deviate from their current ATC clearance to the extent necessary to comply with a Resolution Advisory (RA)
Single engine taxi is not authorized when: (4)
SOP 3-22
o Ice accretion in the form of freezing rain, freezing drizzle, freezing fog, or heavy snow is anticipated
o Braking action is less than “Good”
o Reported RVR less than 1,200 feet
o Power out is required (no pushback)
CAT II required equipment (14 items)
SOP 3-19
o 2 Inertial Reference Systems o 2 Flight Director Systems o 2 Primary Flight Displays (PFD) o Windshield Wipers o 2 VOR/ILS NAV Systems o 1 VHF/COMM System o CAT II Engagement Logic o 1 Radar Altimeter o 1 Enhanced Ground Proximity Warning System (EGPWS) o 2 Air Data Systems (ADS) o Rudder in Normal Mode o SPOILER FAULT message not presented o 1 Autopilot System with 1 operating channel
NOTE regarding CAT II approaches
Manually flow CAT II approaches are prohibited. The autopilot and autothrottle must be operational and engaged
Use of single engine CAT II approach
SOP 3-19
Republic Airlines is not approved for single engine CAT II approaches. This does not prohibit the Captain from exercising their emergency
authority to conduct a CAT II single engine approach if this is the safest course of action
Max demonstrated altitude loss due to A/P malfunction
SOP 3-19
20ft
Min use height for CAT II approach
50 ft
NOTE regarding CAT II coupled GA height loss
SOP 3-19
Coupled go-around height loss may be 50’
Flap setting for CAT II approach
SOP 3-19
Flaps 5
Max crosswind for CAT II
SOP 3-19
12 knots
NOTE regarding hand flown CAT II approaches
SOP 3-19
Republic Airlines is not approved for manually flown CAT II approaches
TAS, TAT and SAT are only valid above what speed?
SOP 3-13
60 kias
Standby MAG compass indication is not valid while ___
SOP 3-13
…while transmitting on VHF 1
___ mins must be used for all CAT I approaches
SOP 3-13
BARO
Limitation on approaches using IESS
SOP 3-13
LOC B/C not authorized on IESS
Use of guidance data from non-usable stations
SOP 3-13
The Captain must ensure displayed guidance data from non-usable stations is not used for navigation purposes by the Flight Crew
NOTE regarding removal of non-usable NAVAIDs
SOP 3-13
NOTE: Reference Honeywell FMS Pilot’s Guide Chapter 6 NOTICES TO AIRMAN for the removal process of non-usable Navaids
RVSM required equipment (4 items)
SOP 3-14 / FOM 19-6-8
o 2 RVSM Compliant Air Data Systems;
o 1 Autopilot, ENGAGED, with Altitude Hold Mode operative (C);
o 1 Altitude Alerter;
o 1 Transponder.
Which ADSs are compliant with RVSM?
SOP 3-14
ADS 1, 2 and 3
Can the IESS be used for RVSM?
SOP 3-14
No
If any required RVSM equipment fail prior to entering RVSM airspace, what action is required?
SOP 3-14
The pilot should request a new clearance to avoid
entering this airspace
When is ADS not RVSM compliant?
Sop 3-14
In case of loss of sideslip compensation (EICAS message ADS3 SLIPCOMP FAIL displayed)
Max altitude differences SOP 3-14 -2k to 10k 10K to 20K 20k to 41k
50’
120’
180’
When are FMS speeds authorized for use?
SOP 3-17
FMS Speeds may only be used during normal operations