37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 326476 |
Time | |
Date | 199601 |
Day | Fri |
Local Time Of Day | 1801 To 2400 |
Place | |
Locale Reference | atc facility : bgm |
State Reference | NY |
Altitude | msl bound lower : 19000 msl bound upper : 19000 |
Environment | |
Flight Conditions | IMC |
Light | Night |
Aircraft 1 | |
Controlling Facilities | artcc : zbw artcc : zny |
Operator | common carrier : air carrier |
Make Model Name | SF 340A |
Operating Under FAR Part | Part 121 |
Flight Phase | climbout : intermediate altitude cruise other |
Route In Use | arrival other |
Flight Plan | IFR |
Aircraft 2 | |
Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
Operating Under FAR Part | other : unknown |
Flight Phase | cruise other |
Flight Plan | IFR |
Person 1 | |
Affiliation | government : faa |
Function | controller : radar oversight : supervisor |
Qualification | controller : radar |
Experience | controller non radar : 2 controller radar : 7 controller supervisory : 5 |
ASRS Report | 326476 |
Person 2 | |
Affiliation | government : faa |
Function | controller : radar |
Qualification | controller : radar |
Events | |
Anomaly | non adherence : published procedure non adherence : required legal separation other anomaly other |
Independent Detector | other controllera |
Resolutory Action | none taken : detected after the fact |
Consequence | Other |
Miss Distance | horizontal : 6000 vertical : 800 |
Supplementary | |
Primary Problem | ATC Human Performance |
Air Traffic Incident | Operational Error |
Narrative:
I was working the radar position. An air carrier departed buf flight planned to jfk climbing to FL170. I accepted handoff from ZNY. Aircraft requested FL190 which was approved and entered into computer. Aircraft requested routing change over avp lendy 4 arrival. This was approved by ZNY and issued to aircraft and entered into the computer. ZBW NAS then failed and we were changing to darc, the backup system. I told my 'RA' controller to relieve me so that I could direct the area transition. After depressing the checklist I saw the handoff accepted by ZNY for about a second. Then we transitioned to darc which did not show the handoff completed. I advised the new controller during the briefing that the air carrier was radar with new york sector 50, the same sector that had handoff to me. After our overlap I directed the area transition to/from darc/NAS. About 5 mins later I was advised that new york did not in fact accept the handoff and they were upset as they had less than standard separation 800 ft at 1 mi. I accept full responsibility as all data did not support my belief that I saw the handoff accepted. I thought and even briefed that the handoff was accepted when in fact, it was not. The failure of NAS at a critical time, the failure on my part to verbally confirm the handoff could have contributed to this scenario. In the future I will verbally confirm handoffs during the transition between system. I am most concerned with my seeing something happen that all records indicate did not happen.
Original NASA ASRS Text
Title: LTSS OPERROR OCCURRED WHEN RPTR SWITCHED AN ACR TO ANOTHER CTR POS BELIEVING THE HDOF HAD BEEN ACCEPTED. RPTR ACCEPTED RESPONSIBILITY FOR LTSS.
Narrative: I WAS WORKING THE RADAR POS. AN ACR DEPARTED BUF FLT PLANNED TO JFK CLBING TO FL170. I ACCEPTED HDOF FROM ZNY. ACFT REQUESTED FL190 WHICH WAS APPROVED AND ENTERED INTO COMPUTER. ACFT REQUESTED ROUTING CHANGE OVER AVP LENDY 4 ARR. THIS WAS APPROVED BY ZNY AND ISSUED TO ACFT AND ENTERED INTO THE COMPUTER. ZBW NAS THEN FAILED AND WE WERE CHANGING TO DARC, THE BACKUP SYS. I TOLD MY 'RA' CTLR TO RELIEVE ME SO THAT I COULD DIRECT THE AREA TRANSITION. AFTER DEPRESSING THE CHKLIST I SAW THE HDOF ACCEPTED BY ZNY FOR ABOUT A SECOND. THEN WE TRANSITIONED TO DARC WHICH DID NOT SHOW THE HDOF COMPLETED. I ADVISED THE NEW CTLR DURING THE BRIEFING THAT THE ACR WAS RADAR WITH NEW YORK SECTOR 50, THE SAME SECTOR THAT HAD HDOF TO ME. AFTER OUR OVERLAP I DIRECTED THE AREA TRANSITION TO/FROM DARC/NAS. ABOUT 5 MINS LATER I WAS ADVISED THAT NEW YORK DID NOT IN FACT ACCEPT THE HDOF AND THEY WERE UPSET AS THEY HAD LTSS 800 FT AT 1 MI. I ACCEPT FULL RESPONSIBILITY AS ALL DATA DID NOT SUPPORT MY BELIEF THAT I SAW THE HDOF ACCEPTED. I THOUGHT AND EVEN BRIEFED THAT THE HDOF WAS ACCEPTED WHEN IN FACT, IT WAS NOT. THE FAILURE OF NAS AT A CRITICAL TIME, THE FAILURE ON MY PART TO VERBALLY CONFIRM THE HDOF COULD HAVE CONTRIBUTED TO THIS SCENARIO. IN THE FUTURE I WILL VERBALLY CONFIRM HDOFS DURING THE TRANSITION BTWN SYS. I AM MOST CONCERNED WITH MY SEEING SOMETHING HAPPEN THAT ALL RECORDS INDICATE DID NOT HAPPEN.
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.