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ARTCC radar controller states that while the main and standby radio equipment was OTS; the backup radio equipment could not be clearly heard by pilots.
| Attributes | |
| ACN | 709229 |
| Time | |
| Date | 200609 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : atl.airport |
| State Reference | GA |
| Altitude | msl single value : 22000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller non radar : 2 controller radar : 16 |
| ASRS Report | 709229 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : unable |
| Supplementary | |
| Problem Areas | Navigational Facility |
| Primary Problem | Navigational Facility |
Narrative:
Working the radio position during a very busy time with sequencing arrs to atl and other transitioning aircraft; the pilots could not clearly hear my instructions on the buec. The main and standby frequency were OTS (120.45 and 357.6). Using the backup (buec) for extended periods creates an unsafe environment and unnecessary workload because of the constant repeating instructions. Often; I'm still not sure if aircraft receives and acknowledges the instructions; creating significant confusion. The frequency (120.45 and 307.6) needs to be more reliable.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR STATES THAT WHILE THE MAIN AND STANDBY RADIO EQUIP WAS OTS; THE BACKUP RADIO EQUIP COULD NOT BE CLRLY HEARD BY PLTS.
Narrative: WORKING THE RADIO POS DURING A VERY BUSY TIME WITH SEQUENCING ARRS TO ATL AND OTHER TRANSITIONING ACFT; THE PLTS COULD NOT CLRLY HEAR MY INSTRUCTIONS ON THE BUEC. THE MAIN AND STANDBY FREQ WERE OTS (120.45 AND 357.6). USING THE BACKUP (BUEC) FOR EXTENDED PERIODS CREATES AN UNSAFE ENVIRONMENT AND UNNECESSARY WORKLOAD BECAUSE OF THE CONSTANT REPEATING INSTRUCTIONS. OFTEN; I'M STILL NOT SURE IF ACFT RECEIVES AND ACKNOWLEDGES THE INSTRUCTIONS; CREATING SIGNIFICANT CONFUSION. THE FREQ (120.45 AND 307.6) NEEDS TO BE MORE RELIABLE.
Data retrieved from NASA's ASRS site as of January 2009 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.