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Difference between revisions of "Communication Equipment Technical Problems"

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{{Infobox Air Ground Communication
 
{{Infobox Air Ground Communication
 
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|source_image      = SKYbrary
 
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=== AGC Safety Letters: ===
 
=== AGC Safety Letters: ===
*[http://www.skybrary.aero/bookshelf/books/117.pdf AGC Safety Letter December 2004];
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*[http://www.SKYbrary.aero/bookshelf/books/117.pdf AGC Safety Letter December 2004];
*[http://www.skybrary.aero/bookshelf/books/121.pdf AGC Safety Letter August 2005];
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*[http://www.SKYbrary.aero/bookshelf/books/121.pdf AGC Safety Letter August 2005];
*[http://www.skybrary.aero/bookshelf/books/122.pdf AGC Safety Letter April 2006];
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*[http://www.SKYbrary.aero/bookshelf/books/122.pdf AGC Safety Letter April 2006];
  
 
=== EUROCONTROL Action Plan for Air-Ground Communications Safety, including: ===
 
=== EUROCONTROL Action Plan for Air-Ground Communications Safety, including: ===
*[http://www.skybrary.aero/bookshelf/books/111.pdf AGC Briefing Note 3 – Loss of Communication];
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*[http://www.SKYbrary.aero/bookshelf/books/111.pdf AGC Briefing Note 3 – Loss of Communication];
  
 
=== EUROCONTROL Level Bust Toolkit: ===
 
=== EUROCONTROL Level Bust Toolkit: ===
*[http://www.skybrary.aero/bookshelf/books/139.pdf Level Bust Briefing Note GEN2 - Pilot-Controller Communications];
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*[http://www.SKYbrary.aero/bookshelf/books/139.pdf Level Bust Briefing Note GEN2 - Pilot-Controller Communications];
  
 
=== EUROCONTROL Reports: ===
 
=== EUROCONTROL Reports: ===
*[http://www.skybrary.aero/bookshelf/books/120.pdf Investigation into Loss of Communication];
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*[http://www.SKYbrary.aero/bookshelf/books/120.pdf Investigation into Loss of Communication];
*[http://www.skybrary.aero/bookshelf/books/162.pdf AGC Safety Study – Causes and Recommendations];
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*[http://www.SKYbrary.aero/bookshelf/books/162.pdf AGC Safety Study – Causes and Recommendations];
*[http://www.skybrary.aero/bookshelf/books/119.pdf AGC Safety Study - An Analysis of Pilot-Controller Occurrences];
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*[http://www.SKYbrary.aero/bookshelf/books/119.pdf AGC Safety Study - An Analysis of Pilot-Controller Occurrences];
  
  

Revision as of 01:14, 28 October 2008

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Article Information
Category: Air Ground Communication Air Ground Communication
Content source: Skybrary Skybrary
Content control: EUROCONTROL EUROCONTROL

Description

Sound communications rely on reliable and efficient communication equipment. This briefing note deals with technical problems involving communication equipment.


Types of Equipment Problem

The problems which contribute most commonly to communication breakdown are:

  • Airborne radio equipment malfunction;
  • Ground equipment malfunction; and,
  • Stuck microphone.

Effects

Impairment of communication, or complete or partial loss of communication.


Defences

Duplication of equipment makes complete loss of communication an extremely rare event.


Typical Scenarios

  • Sleeping receiver. Pilot realises that he/she has heard no communication from ATC or from other aircraft for some time. Pilot investigates and finds that ATC have been trying unsuccessfully to contact him/her for some time. Post-flight investigation reveals no fault in the radio equipment.
  • Airborne Equipment. Pilot select a new frequency but equipment does not respond to change, so pilot is unable to transmit or receive on this frequency.
  • Stuck Microphone. Microphone remains live after transmit switch has been released, blocking other transmissions on this frequency.


Solutions

  • Flight crew should always record occurrences as defects in the Aircraft Technical Log after flight. This will provide usable data and ensure that a technical asessment/response is made, recorded and signed for.
  • Pilots and ATCOs report any equipment malfunction, including suspected sleeping receiver, using the national occurrence reporting system, to enable trends to be detected.
  • Operators and ATCUs report equipment malfunctions to the manufacturer to allow improvements to be made to equipment.
  • National authorities continue to investigate sleeping receivers in order to develop solutions.

Further Reading

AGC Safety Letters:

EUROCONTROL Action Plan for Air-Ground Communications Safety, including:

EUROCONTROL Level Bust Toolkit:

EUROCONTROL Reports: