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Less than standard separation between unknown large transport NORDO aircraft conflicted with large transport cargo aircraft on missed approach. Reporter stated controller had issued altitude changes and headings prior to the reporter sighting the other aircraft. Operational error.
| Attributes | |
| ACN | 375380 |
| Time | |
| Date | 199706 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : jfk |
| State Reference | NY |
| Altitude | msl bound lower : 3000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other descent other landing : missed approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 11000 flight time type : 1400 |
| ASRS Report | 375380 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 9000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error other |
Narrative:
Executed published missed approach at jfk runway 4R and departure control advised us to maintain 3000 ft, then 4000 ft and then I think back to 3000 ft, while issuing 2 or 3 heading changes of 60 degrees or more in rapid succession. Urgency of the turns were emphasized when another controller (supervisor?) started issuing the vectors. Shortly thereafter we flew into a brief period of VMC where we immediately noticed a large aircraft at our 12:30-1 O'clock position flying in what appeared to be our same direction. This was at an altitude of between 3000-4000 ft MSL. We immediately advised ATC and they advised us that they had no radio contact with the aircraft. Having a TCASII on board would have given us a prompt 'heads-up' in this situation.
Original NASA ASRS Text
Title: LTSS BTWN UNKNOWN LGT NORDO ACFT CONFLICTED WITH LGT CARGO ACFT ON MISSED APCH. RPTR STATED CTLR HAD ISSUED ALT CHANGES AND HEADINGS PRIOR TO THE RPTR SIGHTING THE OTHER ACFT. OPERROR.
Narrative: EXECUTED PUBLISHED MISSED APCH AT JFK RWY 4R AND DEP CTL ADVISED US TO MAINTAIN 3000 FT, THEN 4000 FT AND THEN I THINK BACK TO 3000 FT, WHILE ISSUING 2 OR 3 HEADING CHANGES OF 60 DEGS OR MORE IN RAPID SUCCESSION. URGENCY OF THE TURNS WERE EMPHASIZED WHEN ANOTHER CTLR (SUPVR?) STARTED ISSUING THE VECTORS. SHORTLY THEREAFTER WE FLEW INTO A BRIEF PERIOD OF VMC WHERE WE IMMEDIATELY NOTICED A LARGE ACFT AT OUR 12:30-1 O'CLOCK POS FLYING IN WHAT APPEARED TO BE OUR SAME DIRECTION. THIS WAS AT AN ALT OF BTWN 3000-4000 FT MSL. WE IMMEDIATELY ADVISED ATC AND THEY ADVISED US THAT THEY HAD NO RADIO CONTACT WITH THE ACFT. HAVING A TCASII ON BOARD WOULD HAVE GIVEN US A PROMPT 'HEADS-UP' IN THIS SIT.
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.