LESS THAN STNADARD SEPARATION BETWEEN CORP JET AND ACR. OPERATIONAL ERROR.

1988-04 · NASA ASRS report 85161

Date: 1988-04 · Aircraft: Light Transport; Low Wing; 2 Turbojet Eng

Anomalies: atc-issue-all-types|conflict-airborne-conflict

Synopsis

LESS THAN STNADARD SEPARATION BETWEEN CORP JET AND ACR. OPERATIONAL ERROR.

Narrative

CORP X WAS BEING CTLED NBOUND BY ORF HIGH SECTOR. ACR Y WAS SBND AT FL280 BEING WORKED BY SBY HIGH. ORF HIGH BEGAN DSNDING CORP X FROM FL310 TO 270. WHEN THE DSNDING X APPEARED ON MY SCOPE AT SBY HIGH; I IMMEDIATELY TURNED ACR Y TO THE SE AND ISSUED TFC. I INFORMED THE ORF HIGH CTLR WHO TURNED CORP X TO THE NW AND HAD X EXPEDITE DSCNT. THE ACFT PASSED APPROX 2 1/2 MI APART WITH 600' ALT SEP. THIS PROB HAS BEEN INTENSIFIED WITH THE IMPLEMENTATION OF E COAST PLAN. THIS WAS PREVIOUSLY ONE SECTOR. NOW IT'S SPLIT INTO TWO WHICH WAS NECESSARY SINCE THE TFC NEARLY DOUBLED. COMPOUNDING THE PROB IS THE FACT THAT MOST OF THE TFC IN TRANSITIONING UP OR DOWN NEAR THE CENTER OF THE OLD ORF HIGH SECTOR; NOW THE BOUNDARY BTWN THE 2 SECTORS. ALSO THE STAFFING WAS LESS THAN ADEQUATE. AT THE TIME OF THE INCIDENT I HAD NO D-SIDE AND ORF HIGH HAD A NON RADAR QUALIFIED D-SIDE. THERE WERE 11 OR 12 RADAR QUALIFIED CTLRS FOR 8 RADAR SECTORS AND MOST OF US WORKED AT LEAST 1 OR 2 STRETCHES DURING THE DAY IN EXCESS OF 2 HRS DURING HEAVY TFC. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR GAVE YRS IN ATC. DESCRIBED ROUGHLY THE BOUNDARY BTWN THESE 2 SECTORS AND SAID ACFT PASSED AT ABOUT THE BOUNDARY. ORF HIGH SHOULD HAVE COORDINATED DSCNT OF CORP X. AFTER AVOIDANCE ACTION BY BOTH CTLRS THE ACFT PASSED 3.5 MI LAT AND HAD 500' VERT SEP. TFC VOL AND CONGESTION WERE FACTORS. BOTH SECTORS BUSY. ACFT WERE OPP DIRECTION ON SAME ARWY. WHEN THEY HAVE TO HOLD IN THESE SECTORS THEY HAVE TO PENETRATE OTHER CTLR AIRSPACE OR GO INTO WARNING AREAS OFF SHORE. STAFFING AND SECTOR MANNING IS NOT GETTING ANY BETTER.

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.

Loading the flight search…

Frequently asked questions

How do I search flights by aircraft type on FlightFinder?

Pick an aircraft model — Boeing 737, Airbus A320, A380, Boeing 787 Dreamliner and more — enter your origin airport, and FlightFinder shows every route that plane flies from there with live fares.

Which aircraft types can I filter by?

We support Boeing 737/747/757/767/777/787, the full Airbus A220/A319/A320/A321/A330/A340/A350/A380 family, Embraer E170/E175/E190/E195, Bombardier CRJ and Dash 8, and the ATR 42/72 turboprops.

Is FlightFinder free to use?

Search and schedules are free. Pro ($4.99/month, $39/year, or $99 one-time lifetime) unlocks the enriched flight card — on-time stats, CO₂ per passenger, amenities, live gate & weather — plus My Trips with push alerts.

Where does the route data come from?

Live schedules come from Amadeus, AeroDataBox and Travelpayouts. Observed routes (which aircraft actually flew a given city pair) are crowdsourced from adsb.lol ADS-B data under the Open Database License.