Limitations

Question 1

Wing Landing Lights - Extend/Retract duty cycle

Answer 1

1. 1.5 minutes after initial extension
2. 3.5 minutes after subsequent operation
   NOTE: Lamp duty cycle is 10 minutes in still, ambient air. 250kts max extended

Question 2

Landing Gear Speed Limits

Answer 2

Extended:
Vle/Mle 300kias/.70M

Operating (Vlo/Mlo)
Extension: 300kias/.70M
Retraction: 250kias/.70M

Question 3

Vmo/Mmo

Answer 3

Sea Level to 27,300’ - 340kias

Above 27,300’ - .84M

Question 4

Turbulent Air Penetration Speed

Answer 4

Recommended:
275-285kias or .75-.79M (whichever is lower)

NOTE: Below 10,000’ the recommended speed is 250 or minimum maneuvering speed for configuration (whichever is higher)

Question 5

Max Diff.

Answer 5

8.07psi

Question 6

Max Emergency Pressure Relief

Answer 6

8.32psi

Question 7

Q: When using manual pressurization must the take off and landing be made with the aircraft unpressurized?

Answer 7

Yes

Question 8

APU EGT limits (MD-83)

Answer 8

Starting(30 seconds)- 760C
Transient Load- 663C
Continuous-630C

Question 9

Q: Is APU air usable in-flight?

Answer 9

No

Question 10

Max Rotor Speed (MD-83)

Answer 10

Red Line - 110%

Question 11

APU Starter Duty Cycle

Answer 11

1st Attempt- 90 sec on 5 min off
2nd Attempt- 90 sec on 5 min off
3rd Attempt- 90 sec on 60min off

Question 12

Autopilot Limitations

Answer 12

• Captain or FO must be in their seat with seat belt fastened while in use
• No AP-coupled approach if autopilot out of trim light is illuminated in excess of 3 seconds after tracking glide slope
• Min Alt T/O - 500’ AGL

Question 13

Battery Voltage

Answer 13

No load - not less than 25VDC
Charging limit - 29-34VDC
Emer Pwr On - not less than 25 VDC

Question 14

What is the normal charging battery voltage?

Answer 14

29-34VDC

Question 15

Can you reset a tripped Battery charger circuit breaker?

Answer 15

No

Question 16

Battery Amps

Answer 16

Battery Charging - 65 to 0 (left)

Emergency Pwr On - 10 to 50 (right)

Question 17

How many seconds can the battery charger be in oscillating mode?

Answer 17

4 seconds

Question 18

DC Bus Limits

Answer 18

Voltage: 26+/-4
Load Meters:
Both indicators above zero, max 1.0
Max difference is 0.3 (between two TRs)

Question 19

ENG Generator Load

Answer 19

Continuous - 1.0
5 minutes - 1.5
5 seconds - 1.5+

Question 20

APU Gen Load

Answer 20

Ground - 1.25
Below FL250 - 1.0
FL250-FL350 - 0.7
Above FL350 - 0.625

Question 21

AC Volts and Freq. Limits (ENG/APU/EXT)

Answer 21

Volts - 115+/-8

Freq - 400+/-20

Question 22

Emergency Lights limits

Answer 22

Must be armed for all flight operations

Question 23

When must the ART system be switched off for TO?

Answer 23

When taking off using TO FLX

Question 24

ENG Starting EGT Limits

Answer 24

Ground - 475C momentary
Flight - 625C momentary
NOTE: Ground idle EGT limit of 480c applies when air bleed or power extraction is used.