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Difference between revisions of "Land and Hold Short Operations"

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==Description ==
 
==Description ==
 
 
'''LAHSO''' is an acronym for a procedure used mainly in the USA and stands for "Land and Hold Short Operations."  If LAHSO is to be used by ATC in the USA, the [[FAA]] requires that the runways involved have:
 
'''LAHSO''' is an acronym for a procedure used mainly in the USA and stands for "Land and Hold Short Operations."  If LAHSO is to be used by ATC in the USA, the [[FAA]] requires that the runways involved have:
 
+
* A hold short line on the landing runway prior to the intersecting runway or taxiway
*A hold short line on the landing runway prior to the intersecting runway or taxiway
+
* Holding position signs on both sides of the runway adjacent to the runway hold lines.
*Holding position signs on both sides of the runway adjacent to the runway hold lines.
+
* A sign with a white inscription on a red background is installed adjacent to these holding position markings.   
*A sign with a white inscription on a red background is installed adjacent to these holding position markings.   
 
  
 
Pilots receiving and accepting ATC LAHSO instructions in the form  "Clear to land Runway 'AA', Hold Short of Runway 'BB',"  must either exit Runway 'AA', or stop at the holding position prior to runway 'BB'.
 
Pilots receiving and accepting ATC LAHSO instructions in the form  "Clear to land Runway 'AA', Hold Short of Runway 'BB',"  must either exit Runway 'AA', or stop at the holding position prior to runway 'BB'.
  
 
Under FAA rules, ATC may authorise LAHSO on a dry runway only if the following conditions are also met:
 
Under FAA rules, ATC may authorise LAHSO on a dry runway only if the following conditions are also met:
 
+
* The runways are reported as clear and dry
*The runways are reported as clear and dry
+
* Weather is better than 1000 ft. ceiling and 3 miles visibility with no tailwind
*Weather is better than 1000 ft. ceiling and 3 miles visibility with no tailwind
+
* Instructions are issued that restrict aircraft from entering the intersecting runway or taxiway being used by other aircraft
*Instructions are issued that restrict aircraft from entering the intersecting runway or taxiway being used by other aircraft
+
* Traffic information is acknowledged by the pilots of both aircraft
*Traffic information is acknowledged by the pilots of both aircraft
+
* The distance from runway threshold to the intersection involved is provided to the flight crew on request
*The distance from runway threshold to the intersection involved is provided to the flight crew on request
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* The distance from the landing threshold to the intersection is assessed as adequate for the landing aircraft category.
*The distance from the landing threshold to the intersection is assessed as adequate for the landing aircraft category.
 
  
 
Related FAA rules require that if the runway is wet, ATC may only authorise LAHSO if the following additional conditions are also met:
 
Related FAA rules require that if the runway is wet, ATC may only authorise LAHSO if the following additional conditions are also met:
 
+
* The airport concerned holds a specific approval for particular runway/runway or runway/taxiway combinations
*The airport concerned holds a specific approval for particular runway/runway or runway/taxiway combinations
+
* The runway pavement surface and friction measurements comply with criteria established by the FAA
*The runway pavement surface and friction measurements comply with criteria established by the FAA
+
* Runway braking action is reported as good
*Runway braking action is reported as good
+
* The runway is not reported as contaminated.
*The runway is not reported as contaminated.
 
  
 
Under FAA procedures, pilots are not required to accept a LAHSO clearance but if they do, the pilot-in-commands are expected to satisfy themselves that their aircraft can safely land and stop within the Available [[Landing Distances|Landing Distance]], which ATC will provide upon request. If landing long becomes likely, then a [[Go-around|go around]] or rejected landing is expected rather than the possibility of violating a LAHSO clearance.
 
Under FAA procedures, pilots are not required to accept a LAHSO clearance but if they do, the pilot-in-commands are expected to satisfy themselves that their aircraft can safely land and stop within the Available [[Landing Distances|Landing Distance]], which ATC will provide upon request. If landing long becomes likely, then a [[Go-around|go around]] or rejected landing is expected rather than the possibility of violating a LAHSO clearance.
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==Related Articles==
 
==Related Articles==
 
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* [[Runway Incursion]]
*[[Runway Incursion]]
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* [[Accident and Serious Incident Reports: RI]]
*[[Accident and Serious Incident Reports: RI]]
 
 
 
  
 
== Further Reading ==
 
== Further Reading ==
 
+
* [http://www.skybrary.aero/bookshelf/books/1873.pdf ICAO Doc 9870 App B - Best Practices on the Flight Deck]
*[http://www.skybrary.aero/bookshelf/books/1873.pdf ICAO Doc 9870 App B - Best Practices on the Flight Deck]
+
* [http://www.skybrary.aero/bookshelf/books/1864.pdf European Action Plan for the Prevention of Runway Incursions App D - Flight Crew Best Practices]
*[http://www.skybrary.aero/bookshelf/books/1864.pdf European Action Plan for the Prevention of Runway Incursions App D - Flight Crew Best Practices]
 
 
 
  
 
[[Category:Preventing Incorrect Presence on Runway]]
 
[[Category:Preventing Incorrect Presence on Runway]]
 
[[Category:Operational Issues]]
 
[[Category:Operational Issues]]

Revision as of 10:16, 22 April 2013

Article Information
Category: Runway Incursion Runway Incursion
Content source: SKYbrary About SKYbrary
Content control: EUROCONTROL EUROCONTROL

LAHSO

Description

LAHSO is an acronym for a procedure used mainly in the USA and stands for "Land and Hold Short Operations." If LAHSO is to be used by ATC in the USA, the Federal Aviation Administration (FAA) requires that the runways involved have:

  • A hold short line on the landing runway prior to the intersecting runway or taxiway
  • Holding position signs on both sides of the runway adjacent to the runway hold lines.
  • A sign with a white inscription on a red background is installed adjacent to these holding position markings.

Pilots receiving and accepting ATC LAHSO instructions in the form "Clear to land Runway 'AA', Hold Short of Runway 'BB'," must either exit Runway 'AA', or stop at the holding position prior to runway 'BB'.

Under FAA rules, ATC may authorise LAHSO on a dry runway only if the following conditions are also met:

  • The runways are reported as clear and dry
  • Weather is better than 1000 ft. ceiling and 3 miles visibility with no tailwind
  • Instructions are issued that restrict aircraft from entering the intersecting runway or taxiway being used by other aircraft
  • Traffic information is acknowledged by the pilots of both aircraft
  • The distance from runway threshold to the intersection involved is provided to the flight crew on request
  • The distance from the landing threshold to the intersection is assessed as adequate for the landing aircraft category.

Related FAA rules require that if the runway is wet, ATC may only authorise LAHSO if the following additional conditions are also met:

  • The airport concerned holds a specific approval for particular runway/runway or runway/taxiway combinations
  • The runway pavement surface and friction measurements comply with criteria established by the FAA
  • Runway braking action is reported as good
  • The runway is not reported as contaminated.

Under FAA procedures, pilots are not required to accept a LAHSO clearance but if they do, the pilot-in-commands are expected to satisfy themselves that their aircraft can safely land and stop within the Available Landing Distance, which ATC will provide upon request. If landing long becomes likely, then a go around or rejected landing is expected rather than the possibility of violating a LAHSO clearance.

It should be noted that some non-US airlines specifically prohibit the acceptance of LAHSO on safety grounds based upon their operational risk assessment procedures.

Related Articles

Further Reading