Narrative:

I was working in the panama city, fl, ATC tower when the stvs (small tower voice switch) went into fail mode 3 times. This system has been in place (operational) for 5 months and remains unreliable. Other problem areas, with the stvs system, are extremely limited volume controls, landline lockouts, limited control of system computer, constant hot microphone with landline selected. FAA airways facilities personnel apparently not properly trained to conduct maintenance or system changes. This system should be evaluated extensively prior to installation in other FAA control towers.

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Original NASA ASRS Text

Title: ATC EQUIP PROB NEW INTERPHONE SYS FAILED 3 TIMES.

Narrative: I WAS WORKING IN THE PANAMA CITY, FL, ATC TWR WHEN THE STVS (SMALL TWR VOICE SWITCH) WENT INTO FAIL MODE 3 TIMES. THIS SYS HAS BEEN IN PLACE (OPERATIONAL) FOR 5 MONTHS AND REMAINS UNRELIABLE. OTHER PROB AREAS, WITH THE STVS SYS, ARE EXTREMELY LIMITED VOLUME CTLS, LANDLINE LOCKOUTS, LIMITED CTL OF SYS COMPUTER, CONSTANT HOT MIKE WITH LANDLINE SELECTED. FAA AIRWAYS FACILITIES PERSONNEL APPARENTLY NOT PROPERLY TRAINED TO CONDUCT MAINT OR SYS CHANGES. THIS SYS SHOULD BE EVALUATED EXTENSIVELY PRIOR TO INSTALLATION IN OTHER FAA CTL TWRS.

Data retrieved from NASA's ASRS site as of July 2007 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.