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Less than standard separation at cruise altitude between 2 air carrier aircraft being controled by ZNY.
| Attributes | |
| ACN | 194385 |
| Time | |
| Date | 199111 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : air |
| State Reference | OH |
| Altitude | msl bound lower : 31000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors enroute airway : j80 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 17000 flight time type : 1400 |
| ASRS Report | 194385 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Miss Distance | horizontal : 24000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
While in cruise flight FL350 on J80 from jfk to lax center advised us to make a right turn 20 degree now. We complied. Approximately 1 min later center said descend immediately to FL310. Second transmission I need a better rate down now. Traffic 12 O'clock and 4 mi same altitude. At the time 350 level cruise seat belt sign off smooth air. We never saw traffic and no explanation. A few mins later changed to cleveland center. Still on assigned heading at 310. Requested climb to FL390 and direct air VOR. Rest of trip normal. Note: at time of incident washington center not accepting traffic and ny center very busy. Aircraft all over area.
Original NASA ASRS Text
Title: LTSS AT CRUISE ALT BTWN 2 ACR ACFT BEING CTLED BY ZNY.
Narrative: WHILE IN CRUISE FLT FL350 ON J80 FROM JFK TO LAX CENTER ADVISED US TO MAKE A R TURN 20 DEG NOW. WE COMPLIED. APPROX 1 MIN LATER CENTER SAID DSND IMMEDIATELY TO FL310. SECOND XMISSION I NEED A BETTER RATE DOWN NOW. TFC 12 O'CLOCK AND 4 MI SAME ALT. AT THE TIME 350 LEVEL CRUISE SEAT BELT SIGN OFF SMOOTH AIR. WE NEVER SAW TFC AND NO EXPLANATION. A FEW MINS LATER CHANGED TO CLEVELAND CENTER. STILL ON ASSIGNED HDG AT 310. REQUESTED CLB TO FL390 AND DIRECT AIR VOR. REST OF TRIP NORMAL. NOTE: AT TIME OF INCIDENT WASHINGTON CENTER NOT ACCEPTING TFC AND NY CENTER VERY BUSY. ACFT ALL OVER AREA.
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.