Checked Limitations

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spqswa
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251764
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Checked Limitations
Updated:
2013-12-18 13:59:46
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Checked limitations
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  1. What are the weather mins for CIRCLE TO LAND approaches?
    1000 AND 3

    unless approach chart minimums specify higher.
  2. What is the MDA for Circle to Land approaches?
    1000ft AAE

    unless restricted to a higher altitude in the circle-to-land minimums section on the approach chart.
  3. What is the limitation for tripped circuit breakers?
    A tripped circuit breaker may only be reset once. Allow approximately two minutes for cooling before resetting.

    An in-flight reset should only be accomplished if, in the judgment of the Captain, regaining use of that system is critical to the safe conduct of the flight.
  4. How must flight crews respond to TCAS information (both TAs and RAs)?
    Flight Crews must immediately respond to TCAS information (both TAs and RAs) by using the TCAS (Traffic Avoidance) guidelines located in the QRH Section P Non-Normal Maneuvers/Profiles.
  5. What are Pilots authorized to do with a TCAS II Resolution Advisory (RA).
    Pilots are authorized to deviate from an ATC clearance to the extent necessary to comply with the TCAS II Resolution Advisory (RA).
  6. What is the maximum operating pressure altitude for the NG and CL?
    • NG - 41,000 feet

    • CL - 37,000 feet
  7. What is the limitation for the a/c packs?
    With engine bleed air switches ON, do not operate the air conditioning packs in HIGH for takeoff, approach, or landing.
  8. What is the maximum allowable altitude for the APU?
    Operation - NG 41,000 feet/CL 35,000 feet

    Electric Only - NG 41,000 feet/CL 35,000 feet

    Bleed Air Only - BOTH 17,000 feet

    Bleed Air & Electric - BOTH 10,000 feet
  9. What is the limitation for the discharge of the Cargo Bay fire suppression system?
    Aircraft must land within 60 minutes of initial discharge of the fire suppression system.
  10. What is the limitation for single generator operation (engine driven)?
    On the ground, limit one generator operation (engine driven) to a maximum of 215 amps (NG only).
  11. What are the electrical AC voltage and frequency limitations and when are they applicable?
    • 400 +/- 10 CPS
    • 115 +/- 5 V

    Electrical AC voltage and frequency limitations applicable only during standby power check.
  12. What is the limitation for AC power after IRS shutdown?
    Do not remove AC power from the aircraft for at least 30 seconds after IRS shutdown.
  13. What are the speedbrake limitations?
    • Do not use speed brakes in flight below 1000 feet AGL.

    • In flight, do not extend the speedbrake lever beyond the flight detent.

    • In flight, do not use speedbrakes unless the flaps are fully retracted.
  14. What is the limitation for the Alternate Flaps?
    Alternate flap duty cycle in flight is one complete cycle, then 5 minutes off. A complete cycle is movement from position 0 to 15 and back to 0. The alternate flap switch must be in the OFF position for 15 sec before reversing the direction of flap movement.
  15. What is the altitude limitation for the flaps?
    Do not extend flaps above 20,000 feet pressure altitude.
  16. What are the fuel temperature limitations?
    • • Max Fuel Tank Temperature + 49 C
    • • Min Fuel Tank Temperature - 37 C

    Note: Jet A freeze point is - 40 C, and other listed fuels freeze at lower temperatures.
  17. What is the limitation for fuel distribution (center tank/main tanks)?
    • Main tanks must be full if the center tank quantity is greater than 1000 pounds.

    • Use center tank to depletion followed by wing tank fuel.

    Note 4: 1000 pounds may be retained in the center tank provided the effects of balance have been considered.

    Note 5: CL Center tank fuel pumps must be ON for takeoff with more than 1000 pounds of fuel in the center tank.

    Note 6: Some MEL items can override this limitation.

    Note 7: NG - This limitation is modified under certain ADs.
  18. What is the limitation for the center tank fuel pump switches on the ground?
    For ground operation, center tank fuel pump switches must not be positioned to ON unless the center tank fuel quantity exceeds 1000 pounds, except when defueling or transferring fuel.
  19. What should be done when both center tank fuel pump low pressure lights illuminate?
    Center tank fuel pump switches must be positioned to OFF when both center tank fuel pump low pressure lights illuminate.

    Note: The limitation does not change the existing normal procedure to turn the center tank fuel pump switches to OFF at the first indication of low pressure from either pump.
  20. What is the limitation for the center tank fuel pump switches at all times?
    Center tank fuel pumps must not be ON unless personnel are available on the flight deck to monitor the low pressure lights.
  21. Which circuit breakers should never be reset by flight crews?
    Flight Crews must not reset tripped fuel quantity indicator, fuel pump or fuel pump control circuit breakers.
  22. What should be done at the first indication of center tank fuel pump low pressure lights?
    The fuel pump switches must be positioned OFF at the first indication of fuel pump low pressure.
  23. What is the limitation for the center tank fuel pump switches during takeoff?
    Both center tank fuel pump switches must be positioned OFF for takeoff if center tank fuel quantity is less than 5000 pounds.
  24. What is the limitation for the center tank fuel pump switches during takeoff AND initial climb?
    When center tank fuel quantity is greater than 2000 pounds, turn on both center tank fuel pump switches above 10,000 feet or after reducing the pitch attitude to accelerate to 250 knots or greater.
  25. When should the center tank fuel pump switches be turned ON during climb and cruise?
    If more than 2000 pounds of fuel remaining the center tank, both center tank fuel pump switches should be repositioned ON.
  26. When should the center tank fuel pump switches be turned OFF during climb and cruise?
    Turn one center fuel pump switch OFF during climb or cruise when the center tank fuel quantity reaches approximately 2000 pounds. Open the crossfeed valve to minimize fuel imbalance.

    NOTE: When the MASTER CAUTION and FUEL system annunciator lights illuminate, turn the remaining center tank fuel pump switch OFF without delay and close the fuel crossfeed valve.
  27. What is the limitation for the center tank fuel pump switches during decent?
    Turn one center fuel pump switch OFF at the beginning of the descent if less than 3000 pounds of fuel remain in the center tank. Open the crossfeed valve to minimize fuel imbalance.

    NOTE: When the MASTER CAUTION and FUEL system annunciator lights illuminate, turn the remaining center tank fuel pump switch OFF without delay and close the fuel crossfeed valve.

    NOTE: If an extended period of level flight is required prior to approach and landing(i.e., holding), and fuel remains in the center tank, a single center tank fuel pump switch may be positioned ON if both fuel pumps were previously turned OFF. The fuel crossfeed valve should be opened to prevent fuel imbalance.
  28. What is the flap limitation in icing conditions?
    Holding in icing conditions with flaps extended is prohibited (NG only).
  29. What is the max EGT for engine ground start?
    725 C for all airframes.
  30. What is the minimum duct start pressure?
    Minimum duct start pressure is 30psi, reducing 0.5 PSI per 1000 feet above sea level (CL only).
  31. How long should you operate the engines prior to takeoff?

    On the first flight of the day?
    • Operate engines at or near idle, after rollback, for a minimum of two minutes prior to applying takeoff thrust.

    • On the first flight of the day, operate  engines at or near idle, after rollback, for a minimum of five minutes prior to applying takeoff thrust.
  32. How long should you operate the engines at idle after landing prior to shutdown?
    • Operate engines at idle for a minimum of one minute prior to shutdown.

    When operational conditions permit, engines should be idle for 3 minutes before shutdown.
  33. What is the limitation for the thrust reversers?
    Reverse thrust is for ground use only.
  34. What is the limitation for the weather radar?
    Do not operate the weather radar during fueling, near fuel spills, or near people.

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