ATC equipment problem radio transmitter failed.

Attributes
ACN	202836
Time
Date	199202
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sju
State Reference	PR
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : sju
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 10
ASRS Report	202836
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

While working san juan approach control east and west sectors combined both primary and backup transmitters for 119.4 and 120.9 failed around PM45 local time. Reason for the failure was unknown. The transmitter failure lasted for about 5 mins. During the failure there was numerous VFR and IFR aircraft receiving service. By using a multi channel transceiver all the aircraft were brought together onto one frequency and no loss of separation occurred, but could have if it had happened during a busy period.

Original NASA ASRS Text

Title: ATC EQUIP PROBLEM RADIO XMITTER FAILED.

Narrative: WHILE WORKING SAN JUAN APCH CTL E AND W SECTORS COMBINED BOTH PRIMARY AND BACKUP XMITTERS FOR 119.4 AND 120.9 FAILED AROUND PM45 LCL TIME. REASON FOR THE FAILURE WAS UNKNOWN. THE XMITTER FAILURE LASTED FOR ABOUT 5 MINS. DURING THE FAILURE THERE WAS NUMEROUS VFR AND IFR ACFT RECEIVING SVC. BY USING A MULTI CHANNEL TRANSCEIVER ALL THE ACFT WERE BROUGHT TOGETHER ONTO ONE FREQ AND NO LOSS OF SEPARATION OCCURRED, BUT COULD HAVE IF IT HAD HAPPENED DURING A BUSY PERIOD.

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.