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Less than standard separation when small aircraft climbed through the altitude of small transport and lateral separation not maintained.
| Attributes | |
| ACN | 94535 |
| Time | |
| Date | 198809 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bdr |
| State Reference | CT |
| Altitude | msl bound lower : 5000 msl bound upper : 5400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 tower : tus |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller non radar : 2 controller radar : 2 |
| ASRS Report | 94535 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : insufficient time |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 12000 vertical : 400 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was working the erick position at the ny TRACON and accepted a handoff on aircraft small aircraft X climbing out of 5000-6000' when I noticed a tag at 5000' moving eastbound in front of small aircraft X. I called the traffic and the pilot reported he did not see the other aircraft. I then asked small aircraft X to increase his rate of climb to get above the other aircraft. Small aircraft X was on a random route when he was supposed to be on V16. Callback conversation with reporter revealed the following: reporter took the handoff on small aircraft X when the aircraft was some distance outside his airspace boundary headed toward his airspace. The transferring controller failed to assure sep between small aircraft and small transport Y before he transferred the small aircraft to reporter's frequency. Small aircraft X was climbing to 6000' but did not reach that altitude before latitude sep was lost with small transport Y at 5000'. Reporter was exonerated of any blame in this system error.
Original NASA ASRS Text
Title: LESS THAN STANDARD SEPARATION WHEN SMA CLIMBED THROUGH THE ALT OF SMT AND LATERAL SEPARATION NOT MAINTAINED.
Narrative: I WAS WORKING THE ERICK POS AT THE NY TRACON AND ACCEPTED A HDOF ON ACFT SMA X CLBING OUT OF 5000-6000' WHEN I NOTICED A TAG AT 5000' MOVING EBND IN FRONT OF SMA X. I CALLED THE TFC AND THE PLT RPTED HE DID NOT SEE THE OTHER ACFT. I THEN ASKED SMA X TO INCREASE HIS RATE OF CLB TO GET ABOVE THE OTHER ACFT. SMA X WAS ON A RANDOM RTE WHEN HE WAS SUPPOSED TO BE ON V16. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR TOOK THE HDOF ON SMA X WHEN THE ACFT WAS SOME DISTANCE OUTSIDE HIS AIRSPACE BOUNDARY HEADED TOWARD HIS AIRSPACE. THE TRANSFERRING CTLR FAILED TO ASSURE SEP BTWN SMA AND SMT Y BEFORE HE TRANSFERRED THE SMA TO RPTR'S FREQ. SMA X WAS CLBING TO 6000' BUT DID NOT REACH THAT ALT BEFORE LAT SEP WAS LOST WITH SMT Y AT 5000'. RPTR WAS EXONERATED OF ANY BLAME IN THIS SYS ERROR.
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.