ATR 72 Limitations

This airplane is certificated in the Transport Category under FAR Parts 25, 36, JAR 25 and ICAO 16. When the appropriate equipment and instruments, as required by the airworthiness and operating regulations are approved, installed and in operable condition, flight in the following conditions are approved.

• * Day and Night
• * VFR and IFR
• * Flight in icing conditions
• * Reverse thrust taxi (single and two engine)

• Warning
• The airplane is prohibited from flight into severe icing conditions, which are outside of the certification envelope. In case of inadvertent encounter, refer to the Severe Icing Emergency Procedure, [ICE]

• Maximum Operating Altitude........................25,000 ft.
• Minimum Takeoff and Landing Altitude..........-1000 ft.
• Maximum Takeoff and Landing Altitude..........8,500 ft.

Limiting tailwind component............................10 kts.

• Note
• Tailwind operations with up to 15 kts. are approved only when airport analysis supporting greater than 10 kts. of tailwind is provided.

• Takeoff..............................................................35 kts.
• Landing..............................................................35 kts.

Mach .55

250 KIAS

170 KIAS

160 KIAS

185 KIAS

• 15 - 185
• 30 - 150

V_RA - 180 KIAS

V_A - 175 KIAS

160 KIAS

• Max Diff..........................................................6.35 psi
• Min Diff............................................................-0.5 psi
• Max Diff for overboard valve full open selection..1 psi

• A flight director mode must be selected prior to autopilot engagement.
• Minimum height for autopilot engagement after takeoff will be 500ft. AFL.
• VOR approaches uning NAV mode with either autopilort or flight director is authorized only if; - A collocated DME is available, and - DME HOLD is not slected.
• Minimum height for use of either autopilot or flight director. - Except during take off or executing an approach 1,000 ft. AGL. - APP, V/S or IAS mode during approach; 160 ft AFL

PRIMARY VISUAL CUES are characterized by ice covering all, or a substantial part of the unheated portion of either forward side window, possibly associated with water splashing and streaming on the windshield.

AND/OR

PRIMARY PERFORMANCE CUES are characterized by unexpected decrease in airspeed an/or rate of climb.

1609 lb.

• None - 800
• 20 seconds - 840
• 5 seconds - 950

-54 ^oC

Three starts with a 1 minute 30 second maximum combined starter running time, followed by four minutes OFF.

• TQ (%) - 100
• NP (%) - 100
• ITT (oC) - 800

a. Scheduled RTO torque is 100%; however, acceptable overtorque is 106.3% and 101% Np.

• TQ (%) - 90
• NP (%) - 100
• ITT (oC) - (c)

• b. Values linked to 100% Np; however, acceptable Np is 101%
• c. ITT limits are dependent on outside air temerature. Refer to [72] ITT takeoff limits.

• TQ (%) - 90.9
• NP (%) - 100
• ITT (oC) - 800

b. Values linked to 100%; however, aceptable overtorque is 106.3% and 101% Np.

• TQ (%) - 100
• NP (%) - 101
• ITT (oC) - 800

(b) Time beyond five minutes is linked to actual single engine operations only.

• TQ (%) - 90
• NP (%) - 101
• ITT (oC) - (c)

c. ITT limits are dependent on outside air temperature. Tefer to [72] ITT Takeoff limits.

• TQ (%) - 90.9
• NP (%) - 101
• ITT (oC) - 800

b. Time beyond five minutes is linked to actual single engine operations only.

* A flight director mode must be selected prior to auto pilot engagement.

* Minimum height for autopilot engagement after takeoff will be 500 ft. AFL.

• *VOR approaches using NAV mode with either autopilot or flight director is authorized only if.
• - A collocated DME is available, and
• - DME HOLD is not selected
• * Minimum height for use of either autopilot or flight director.
• - Except during take off or executing an approach 1000 ft. AGL.
• - APP, V/S of IAS mode approach: 160 ft. AFL

PRIMARY VISUAL CUES are characterized by ice covering all, or a substantial part of the unheated portion of either forward side window, possibly associated with water splashing and streaming on the windshield.

PRIMARY PERFORMANCE CUES are characterized by unexpected decrease in airspeed and/or rate of climb.

*** If one of these is observed exit icing conditions and call for Severe Icing Procedure -EMER/ABNORM [ICE]

Visible moisture is defined as clouds, fog with visiblity of less than one mile, rain, snow, sleet and ice crystals.

Level 3 will not be deactivated until five minutes after leaving Atmospheric Icing Conditions.

OAT 5 ^oC or colder and Visible Moisture*

Levels 1 and 2

Icing

• [72-212] 86% Np
• [72-212A] 82% Np

TAT 7 ^oC or colder and visible Moisture*

Levels 1 and 2

Icing

• [72-212] 86%
• [72-212A] 82%

Ice accretion visible on airframe or indicated by Ice Detector

Levels 1, 2, and 3**

Level 3 will not be deactivated until 5 min after leaving icing conditions.

Icing

• [72-212] 86% Np
• [72-212A] 82%Np

OAT 5 ^oC or colder and surface snow, standing water or slush present on ramps, taxiways or runways.

CONT RELIGHT and Propeller Anti-icing

Normal