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Military helicopter's non compliance with ATC instructions had conflict with air carrier X evasive action taken. See and avoid concept.
| Attributes | |
| ACN | 225685 |
| Time | |
| Date | 199211 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : hpn |
| State Reference | NY |
| Altitude | msl bound lower : 2000 msl bound upper : 2000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 tower : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Helicopter |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 250 flight time total : 10000 flight time type : 5000 |
| ASRS Report | 225685 |
| Person 2 | |
| Affiliation | government : military |
| Function | flight crew : single pilot oversight : pic |
| Qualification | pilot : military |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 12000 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X talking to ny approach, over tappan zee bridge at 2000 ft, turned to 150 degree heading by ATC. ATC told us '5 military guard 'copters, 12 O'clock, 2000 my control.' we had them in sight, and said so. We were being vectored downwind for a visual runway 34 hpn. ATC told guard helicopters to descend to 1500 ft. At first, there was no response. ATC tried again and the helicopter acknowledged the descent. We could see that maybe 1 helicopter started to descend, but the main body did not. At this time, I told ATC that we were turning east (left about 30 degrees) and that we had the airport in sight. We were then cleared for the visual runway 34. I'm not sure why we were turned on a collision course with the helicopters -- probably to avoid VFR traffic pattern, runway 29 at hpn.
Original NASA ASRS Text
Title: MIL HELI'S NON COMPLIANCE WITH ATC INSTRUCTIONS HAD CONFLICT WITH ACR X EVASIVE ACTION TAKEN. SEE AND AVOID CONCEPT.
Narrative: ACR X TALKING TO NY APCH, OVER TAPPAN ZEE BRIDGE AT 2000 FT, TURNED TO 150 DEG HDG BY ATC. ATC TOLD US '5 MIL GUARD 'COPTERS, 12 O'CLOCK, 2000 MY CTL.' WE HAD THEM IN SIGHT, AND SAID SO. WE WERE BEING VECTORED DOWNWIND FOR A VISUAL RWY 34 HPN. ATC TOLD GUARD HELIS TO DSND TO 1500 FT. AT FIRST, THERE WAS NO RESPONSE. ATC TRIED AGAIN AND THE HELI ACKNOWLEDGED THE DSCNT. WE COULD SEE THAT MAYBE 1 HELI STARTED TO DSND, BUT THE MAIN BODY DID NOT. AT THIS TIME, I TOLD ATC THAT WE WERE TURNING E (L ABOUT 30 DEGS) AND THAT WE HAD THE ARPT IN SIGHT. WE WERE THEN CLRED FOR THE VISUAL RWY 34. I'M NOT SURE WHY WE WERE TURNED ON A COLLISION COURSE WITH THE HELIS -- PROBABLY TO AVOID VFR TFC PATTERN, RWY 29 AT HPN.
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.