 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
ARTCC radar controller climbed an large transport through altitude occupied by flight of 3 fgts with less than standard separation.
| Attributes | |
| ACN | 83348 |
| Time | |
| Date | 198803 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : fra |
| State Reference | CA |
| Altitude | msl bound lower : 20000 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Fighter |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 15 |
| ASRS Report | 83348 |
| Person 2 | |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 15000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Large transport X left fresno on a short flight to den. I was the controller involved. A flight of 3 fgt Y's were on a flight from lemoore NAS to fallon NAS at 20000'. Large transport X came over to me from fresno approach climbing to 10000'. I cleared the large transport X to 19000', but my xmissions were blocked by someone keying my frequencys. I attempted and finally succeeded in getting the frequencys unblocked, and with the traffic vol building, I hurriedly cleared large transport X to 23000' thinking 19000'. I quoted the traffic to large transport X. He got them in sight and proceeded to climb through their altitude. At no time did the large transport X question my actions. But I failed to separate him from the fgt Y as per regulations.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR CLIMBED AN LGT THROUGH ALT OCCUPIED BY FLT OF 3 FGTS WITH LESS THAN STANDARD SEPARATION.
Narrative: LGT X LEFT FRESNO ON A SHORT FLT TO DEN. I WAS THE CTLR INVOLVED. A FLT OF 3 FGT Y'S WERE ON A FLT FROM LEMOORE NAS TO FALLON NAS AT 20000'. LGT X CAME OVER TO ME FROM FRESNO APCH CLBING TO 10000'. I CLRED THE LGT X TO 19000', BUT MY XMISSIONS WERE BLOCKED BY SOMEONE KEYING MY FREQS. I ATTEMPTED AND FINALLY SUCCEEDED IN GETTING THE FREQS UNBLOCKED, AND WITH THE TFC VOL BUILDING, I HURRIEDLY CLRED LGT X TO 23000' THINKING 19000'. I QUOTED THE TFC TO LGT X. HE GOT THEM IN SIGHT AND PROCEEDED TO CLB THROUGH THEIR ALT. AT NO TIME DID THE LGT X QUESTION MY ACTIONS. BUT I FAILED TO SEPARATE HIM FROM THE FGT Y AS PER REGS.
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.