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Air carrier medium large transport had communication problem with ZTL. Flight crew returned to previous frequency to get descent clearance. When communication reestablished with first controller, he was not aware that a descent clearance had been issued.
| Attributes | |
| ACN | 129249 |
| Time | |
| Date | 198911 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lgc |
| State Reference | GA |
| Altitude | msl bound lower : 24000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other cruise other descent other |
| Route In Use | arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 300 flight time total : 15000 flight time type : 5000 |
| ASRS Report | 129249 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation Inter Facility Coordination Failure |
Narrative:
ZTL's radio apparently failed. There was considerable confusion on frequency. We switched back to last frequency and received descent clearance to FL240, then were told to monitor the atlanta frequency that experienced failure. When atlanta did finally come up, they were unaware we had descended out of 31000' toward FL240.
Original NASA ASRS Text
Title: ACR MLG HAD COM PROBLEM WITH ZTL. FLT CREW RETURNED TO PREVIOUS FREQ TO GET DESCENT CLRNC. WHEN COM REESTABLISHED WITH FIRST CTLR, HE WAS NOT AWARE THAT A DESCENT CLRNC HAD BEEN ISSUED.
Narrative: ZTL'S RADIO APPARENTLY FAILED. THERE WAS CONSIDERABLE CONFUSION ON FREQ. WE SWITCHED BACK TO LAST FREQ AND RECEIVED DSCNT CLRNC TO FL240, THEN WERE TOLD TO MONITOR THE ATLANTA FREQ THAT EXPERIENCED FAILURE. WHEN ATLANTA DID FINALLY COME UP, THEY WERE UNAWARE WE HAD DSNDED OUT OF 31000' TOWARD FL240.
Data retrieved from NASA's ASRS site as of August 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.