Q400 Limitations

53 terms by lcagle33

Create a new folder

Advertisement Upgrade to remove ads

From Q400 FSM

Maximum Lateral Asymmetry

Maximum fuel imbalance between contents of main fuel tanks is 600 lb. (This is an inflight limitation only.) M

Maximum Operating Altitude

Maximum Operating Altitude................ 25,000 ft ASL M
Maximum Operating Altitude
for Takeoff and Landing......................10,000 ft ASL M

Maximum Crosswind Component

Maximum crosswind component approved for takeoff and landing on a hard, dry, or wet runway is 32 knots. M

Ambient Temperature Limits - Flight and Ground

Airplane maximum operating ambient temperature limit is +50°C or ISA +35°C, whichever is lower. M
Airplane minimum operating ambient temperature limit is -54°C. M

Airspeed Limitations

Maximum Operating Speed (VMO)
0 to 8,000ft........................ 245 KIAS
(VMO varies linearly between atiltudes.)

Flaps Extended Speed (VFE)
Flaps 5°..........................200 KIAS M
Flaps 10°........................181 KIAS M
Flaps 15°........................172 KIAS M
Flaps 35°........................158 KIAS M
Landing Gear Operating Speed (VLO) ............................200 KIAS M
Landing Gear Extended Speed (VLE) .............................215 KIAS M
Rough Air Speed.............................210 KIAS M

Powerplant Limitations

Ambient Temperature Limitations (Upper)+50°C or ISA +35°C, whichever is lower. M

Fuel

Tank 1 and tank 2 auxiliary pumps must be ON for takeoff and landing. M

Starter Cranking Limits

Start 1: Maximum time on; 70 seconds. Followed by; 2 minutes off. M

Takeoff Power Setting Limitations

Setting takeoff power prior to brake release, with the nose of the airplane more than 45° out of the wind, is prohibited for wind speeds greater than 8 knots. M

The use of MTOP (Max. Takeoff Power) on takeoff is limited to ten
minutes.

Engine Airborne Operating Limitations

Inflight operation of the POWER levers aft of the FLIGHT IDLE gate is prohibited. M

Electrical Systems Limitations

Standby battery, Auxiliary battery and Main battery maximum loadmeter reading for takeoff is 0.1. M
Minimum battery temperature for takeoff is -20°C. M

Landing Gear and Flap Systems

Maximum altitude for extending landing gear or wing flaps is 15,000 feet. M (Ldg. Gear Ext. w Doors closed 20,000')

Maximum Tire Speed

Maximum tire speed is 182 knots groundspeed. M

Air Conditioning and Pressurization

Maximum cabin pressure differential limit
............................. ..................5.95 psi M
Maximum cabin pressure differential limit
during takeoff and landing......0.5 psi M
Maximum cabin altitude
(pressurized flight) .................... 8,000 ft

Bleed Air Limits M

Bleed air must be OFF for Takeoff whenever:
• Tailwind component exceeds 10 knots
• Takeoff is conducted with maximum takeoff power (MTOP, say "em top") selected
• Windshear is suspected QX
For Landing, bleed air must be OFF whenever:
• Tailwind exceeds 10 knots
• Reported outside air temperature (OAT) exceeds 39°C (100°F)
• Windshear is suspected QX

Icing conditions exist when:

On the ground: (taxi for takeoff) -
Static air temperature (SAT) is 10°C or below when precipitation in any form is present, or fog with visibility of 1 mile or less; also when operating on ramps, taxiways, or runways where surface snow, ice, slush, or standing water may be ingested by the engines or freeze on engines, nacelles or engine sensor probes. M
In flight -
Static air temperature (SAT) is 5°C or below and visible moisture is present in any form. M

Engine Ice Protection

Engine intake bypass doors must be open for engine operation in icing conditions. M

Automatic Flight Control Systems (AFCS) M

• Use of VOR without associated DME is prohibited in APP mode.

Autopilot M

• During autopilot operation, the pilot shall be seated at the controls with harness secured.
• After takeoff or go-around, the minimum height for autopilot engagement is 1,000 feet
AGL.
• Autopilot shall be disengaged in severe icing.
• Autopilot shall be disengaged in severe or extreme atmospheric turbulence.
• Autopilot (coupled) and Flight Director (manual) approaches are approved from a nominal glideslope angle of 2.5° to maximum of 4°.
• AFCS is approved for autopilot coupled approaches to CAT I limits only.
• Autopilot coupled approaches are approved for :
o Flap 0° (minimum altitude: 1,000 feet AGL)
o Flap 5°, 10°, 15 and 35°
• Autopilot coupled approaches have been demonstrated in crosswind components up to
18 knots. This is not considered limiting.
• Autopilot shall be disengaged prior to FAF for :
o HGS approaches flown in AIII mode
o Approaches flown with an inoperative engine
• For all autopilot coupled approaches, the autopilot shall be disengaged at or above a
minimum altitude of 200 feet AGL.

Baggage Compartment Fire Extinguishing

Unless the forward and aft baggage compartments are empty, the airplane must not be operated further than one (1) hour flying time from a suitable airport for landing. M

Flight Compartment Communication M

HOT MIC (say "mike") select switches on the Captain and First Officer ARCDU (say "ark do") shall be OFF and the INT / RAD (say "interphone radio") switch on the Observer's Audio Control Panel shall be centered, when using the flight deck speakers.

AHRS M (Attitude and Heading Reference System, say "a-hars")

Takeoff in BASIC mode is prohibited.
Takeoff in DG mode is prohibited.

Auxiliary Power Unit (APU)

APU is approved for GROUND OPERATIONS ONLY. M
APU shall be shutdown prior to takeoff. M
APU shall not be operated unattended with passengers on board. M
APU shall not be operated during gravity refueling. M
APU ambient temperature limitations (Lower) -35°C M (Upper) +50°C or ISA +35°C whichever is lower. M

APU Starter Cranking Limitations M

Start Attempt 1 & 2:
Max time on: 60 seconds
Followed by: 2 minutes off for starter cooling and residual fuel dissipation
Start Attempt 3:
Max time on: 60 seconds
Followed by: 30 minutes off
*Maintenance action required prior to next start attempt*

Maximum Structural Weight Limits

Ramp Weight...............................................65,400 lb
Max. Takeoff Weight....................................65,200 lb
Max. Landing Weight....................................62,000 lb
Max. Zero Fuel Weight ................................58,000 lb
Min. Structural Design Weight .....................31,753 lb

Flightdeck Door QX

• The flightdeck door must be kept closed and locked at all times during flight except to permit access and egress in accordance with FAA-approved procedures for opening, closing, and locking the door.
• Any time the flightdeck door is opened in flight, a challenge and response closing and locking verification procedure must be used toverify that the door is closed and locked.
• Two people must be in the flightdeck at all times when the aircraft isbeing operated while the door is closed and the door lock handle isin the locked position.

Loading Limits

FORWARD Cargo Compartment:
Max floor loading ..................................125 lb/ft2
Max permitted load ....................................390 lb
AFT ONE Compartment:
Max floor loading ....................................125 lb/ft2
Max permitted load ...................................3,660 lb
AFT TWO Compartment (aft step):
Max floor loading ..................................... 75 lb/ft2
Max permitted load ....................................1,000 lb
Maximum total load
(AFT ONE plus AFT TWO) .........................3,660 lb

Maneuvering Speed (VA

Full application of rudder and aileron controls, and maneuvers that involve angles of attack near the stall, should be confined to speeds below 204 KIAS.

Alternate Gear Extension Speed

Under this mode of extension, speed is limited to 185 KIAS because allwheel well doors remain open after gear is fully down.

Power Plant Limitations

MTOP.....106% TQ ..1020 NP
(Maximum allowable continuous NP overspeed is 1071 rpm.)
NTOP......90.3% TQ
TRANSIENT.135% TQ .1173 NP (20 seconds MAX)
MAX REVERSE....35% TQ

Manufacturer....... Pratt & Whitney Model PW 150A

Ambient Temperature Limitation (Upper) ....+50°C or ISA +35°C,whichever is lower M

Ambient Temperature Limitation (Lower) ........ -54°C

With Bypass Doors Open, MTOP and MCP Power settings are limited to a maximum Ambient Temperature Limitation of .............................................. ISA+25°C

Maximum Altitude for Airstart ......................... 20,000 ft

Automatic Takeoff Power Uptrim...10% torque (nominal)

The maximum takeoff rating (MTOP) is limited to

TEN minutes.

Oil Temperature Limitations:

NOTE:
Oil temperature indications on the Engine Display may be amber at or below 65°C, but takeoff is authorized.

a. Maximum oil temperature is 125°C between discing and flight idle.
b. Minimum oil temperature required for power settings above flight idle is 0°C.
c. Minimum oil temperature required to ensure engine air inlet ice protection, prior to takeoff, is 55°C.
d. Minimum oil temperature required to ensure engine air inlet ice protection, in flight and within three minutes of setting takeoff power, is 65°C.

NOTE:
To maintain the minimum engine oil temperature of 65°C duringdescent, holding, and approach in icing conditions, it may be necessary to increase engine power.

Reduced Torque Takeoffs Are Prohibited

(IAFD takeoff shall be accomplished at NTOP to verify engineperformance.)

Reduced torque takeoffs are prohibited:
a. On Initial Aircraft Flight of the Day (IAFD).
b. With a tailwind.
c. If windshear is present or suspected. QX
d. If deice/anti-ice fluids are applied to the aircraft. QX
e. On a contaminated runway. QX
f. If icing conditions exist below acceleration height.

Reduced NP landings are prohibited when:

- Landings are accomplished at the Solid Bug - VREF (ICE).
- Performance requires Bleeds OFF.
- Tailwind component exceeds ten knots.
- Windshear is reported or uspected.
- Runway is contaminated or braking action is less than good.

Engine and Propeller Ground Operating Limitations (See QRH)

NOTE:
Ground operations in winds greater than 50 kt (including maximum wind speed and crosswind component) must berecorded in the Maintenance Log.

Maximum torque ................... 100%

Maximum wind speed for ground operation, with the nose of the airplane more than 30° out of wind is 50 knots.

Turbine Temperature Indicators (ITT)

Maximum - starting (red radial).920°C

Propeller RPM indicators (NP)

Maximum (red radial)........ 1071 rpm

Oil Temperature Indicator

Above............ Maximum (red radial)
Below ................................... -40°C

Oil Pressure Indicator

Under-limit(redpointer/digits) ...................................Below 44 psi
Minimum (red radial)...........................................44 psi
Caution (yellow arc)...........................Low 44 to 61 psi
........................................................High 72 to 100 psi
Low pressure warning light........................44 to 50 psi
Norma loperating (green arc)....................61 to 72 psi

Fuel Temperature Indicator

Over-limit (red digits)................................. above 71°C
Caution (yellow digits)..................................below 0°C
Normal operating (green arc)........................ 0 to 71°C

Ice Protection Airframe

• When ice is detected, the AIRFRAME MODE SELECT switch must be positioned FAST or SLOW.
• The wing and tail leading edge deicing boots must be activated at
the first sign of ice formation anywhere on the aircraft. AD
• The system must either continue to be operated in the automatic
cycling mode, if available, or the system must be manually cycled as
needed to minimize ice accumulation on the airframe. AD
• The wing and tail leading edge deicing boots may be deactivated
only after completion of an entire deicing cycle after leaving icing
conditions. AD

Maximum Tailwind Component

Maximum tailwind for takeoff and landing is 20 knots

Takeoff and/or landing with tailwinds of 11 to 20 knots maximum may be accomplished provided:

• Nosewheel steering is operative.
• Antiskid is operative.
• Flight Spoilers are operative in ground and flight modes.
• Bleed air is selected OFF prior to takeoff or landing.
• Takeoffs are conducted with Flaps 10° or 15°.
• NTOP or MTOP takeoff power rating is used.
• Appropriate takeoff performance is provided in Takeoff Report or Performance Handbook.
• Landings are conducted with Flaps 35°.
• Appropriate landing performance is provided in Landing Report or
General Landing Tables.
• Approach and landing is accomplished at Props 1020 rpm. (RDC NP switch not selected on ECP.)
• Landing approach angle is 4° or less.

Tank 1 and tank 2 auxiliary pumps

must be on for takeoff and landing. M

Wheel Brake Cooling Limits

Brake cooling time must be observed between a landing or a low-energy rejected takeoff and a subsequent takeoff, to ensure that sufficient brake energy is available to bring the airplane to a complete stop if the subsequent takeoff is rejected.
(Minimum brake cooling time is 10 min.)

HGS Limitations
Use of HGS takeoff guidance as the sole means of runway centerline tracking

is prohibited.

HGS Limitations
ILS approaches in AIII mode:

- ILS approaches in AIII mode shall be flown with flaps set to 15°.
- HGS must be in the AIII mode, with gear and flaps in the landing configuration prior to passing the Final Approach Fix. QX
- Maximum crosswind component is 15 knots.
- Maximum tailwind component is ten knots.
- Maximum Headwind component is 25 knots.
- Glideslope angle must be from 2.51° to 3.0°.

Minimum Airspeed in Severe Icing

190 KIAS

Dimensions

Wingspan ...............93 Feet 3 Inches
Length ..................107 Feet 9 Inches
Height ....................27 Feet 4 Inches
Propeller Diameter .13 Feet 6 Inches

Minimum battery temperature for takeoff is[...]. M

Minimum battery temperature for takeoff is -20°C. M

Maximum cabin pressure differential limit[...] psi M

Maximum cabin pressure differential limit 5.95 psi M

Maximum cabin pressure differential limit during takeoff and landing...[...] psi M

Maximum cabin pressure differential limit during takeoff and landing...0.5 psi M

Maximum altitude for extending landing gear or wing flaps is [...] feet. M

Maximum altitude for extending landing gear or wing flaps is 15,000 feet. M
NOTE:
For enroute operations with the landing gear extended in
accordance with MEL or Ferry Flight authorizations, the
maximum altitude with the landing gear extended and landing
gear doors closed is 20,000 ft.

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set