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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Small aircraft pilot takes evasive action on sighting traffic not issued. His original altitude would have been fine and he returns to assigned altitude.
| Attributes | |
| ACN | 350060 |
| Time | |
| Date | 199610 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : jfk |
| State Reference | NY |
| Altitude | msl bound lower : 3350 msl bound upper : 3500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | None |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 31 flight time total : 194 flight time type : 29 |
| ASRS Report | 350060 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Transiting class B on GPS direct from frg to ptw, using flight following. Was being given vectors from new york approach. Approach warned of 2 targets approaching from my 9 O'clock position. Spotted both and informed approach. Within about 30-45 seconds, I spotted another target a 9 O'clock which appeared to be at about the same altitude and closing. Radio traffic was very busy and couldn't read approach. I pushed the nose over and descended 150 ft, then saw other target was on approach descent and immediately climbed back to assigned 3800 ft. I was off assigned altitude for under 15 seconds, other plane did not appear to have to take any evasive action. I believe that although approach had us separated by about 500 ft vertical, we were warned of 2 targets when there were 3.
Original NASA ASRS Text
Title: SMA PLT TAKES EVASIVE ACTION ON SIGHTING TFC NOT ISSUED. HIS ORIGINAL ALT WOULD HAVE BEEN FINE AND HE RETURNS TO ASSIGNED ALT.
Narrative: TRANSITING CLASS B ON GPS DIRECT FROM FRG TO PTW, USING FLT FOLLOWING. WAS BEING GIVEN VECTORS FROM NEW YORK APCH. APCH WARNED OF 2 TARGETS APCHING FROM MY 9 O'CLOCK POS. SPOTTED BOTH AND INFORMED APCH. WITHIN ABOUT 30-45 SECONDS, I SPOTTED ANOTHER TARGET A 9 O'CLOCK WHICH APPEARED TO BE AT ABOUT THE SAME ALT AND CLOSING. RADIO TFC WAS VERY BUSY AND COULDN'T READ APCH. I PUSHED THE NOSE OVER AND DSNDED 150 FT, THEN SAW OTHER TARGET WAS ON APCH DSCNT AND IMMEDIATELY CLBED BACK TO ASSIGNED 3800 FT. I WAS OFF ASSIGNED ALT FOR UNDER 15 SECONDS, OTHER PLANE DID NOT APPEAR TO HAVE TO TAKE ANY EVASIVE ACTION. I BELIEVE THAT ALTHOUGH APCH HAD US SEPARATED BY ABOUT 500 FT VERT, WE WERE WARNED OF 2 TARGETS WHEN THERE WERE 3.
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.