<< >> NASA ASRS Report 1044758, October 2012

A dispatcher was unable to contact a company aircraft using the new digital phone system after the crew requested a dispatch/maintenance phone patch.

Attributes
ACN	1044758
Time
Date	201210
Local Time Of Day	0001-0600
Environment
Light	Night
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Air/Ground Communication
Person 1
Function	Dispatcher
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural FAR Deviation - Procedural Published Material / Policy

Narrative:

Flight sent me a message requesting a phone patch with dispatch and maintenance. Per the SELCAL command; I was to use [a specific] frequency. I attempted to call that number in the new digital phone system and the patch would not connect. The phone rang like nobody was home. I disconnected and tried again with the same result. I tried 3 times without success. I sent an ACARS to the flight asking them to contact commercial radio and contact me via them. At that point; patch with dispatch and maintenance worked fine.

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Original NASA ASRS Text

Title: A Dispatcher was unable to contact a Company aircraft using the new digital phone system after the crew requested a Dispatch/Maintenance phone patch.

Narrative: Flight sent me a message requesting a phone patch with Dispatch and Maintenance. Per the SELCAL command; I was to use [a specific] frequency. I attempted to call that number in the new digital phone system and the patch would not connect. The phone rang like nobody was home. I disconnected and tried again with the same result. I tried 3 times without success. I sent an ACARS to the flight asking them to contact Commercial Radio and contact me via them. At that point; patch with Dispatch and Maintenance worked fine.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.