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An air carrier DC9 flight crew was advised by ARTCC controller that a VFR aircraft was ahead at their altitude. The flight crew sees the aircraft dropping skydivers and evade with a minimum separation of 3 mi.
| Attributes | |
| ACN | 371032 |
| Time | |
| Date | 199706 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : iiu |
| State Reference | KY |
| Altitude | msl bound lower : 14000 msl bound upper : 14000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 50 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Cessna Aircraft Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 10500 flight time type : 7600 |
| ASRS Report | 371032 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe inflight encounter : vfr in imc non adherence : far non adherence : published procedure |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 18000 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
ATC reported VFR aircraft at same altitude, 14000 ft, at 12 O'clock. Aircraft is spotted at about 3 mi with parachuters jumping through the clouds. An immediate left turn is made to avoid the aircraft. During the turn, the TCASII issues a TA and then goes off. A turn was advised to ATC to avoid traffic with a constant sighting of VFR aircraft. No further problems. VFR aircraft was flying between layers of clouds, the visibility was about 10 mi. The time frame from the notification of the VFR aircraft to the actual turn to avoid the plane was about 5 seconds.
Original NASA ASRS Text
Title: AN ACR DC9 FLC WAS ADVISED BY ARTCC CTLR THAT A VFR ACFT WAS AHEAD AT THEIR ALT. THE FLC SEES THE ACFT DROPPING SKYDIVERS AND EVADE WITH A MINIMUM SEPARATION OF 3 MI.
Narrative: ATC RPTED VFR ACFT AT SAME ALT, 14000 FT, AT 12 O'CLOCK. ACFT IS SPOTTED AT ABOUT 3 MI WITH PARACHUTERS JUMPING THROUGH THE CLOUDS. AN IMMEDIATE LEFT TURN IS MADE TO AVOID THE ACFT. DURING THE TURN, THE TCASII ISSUES A TA AND THEN GOES OFF. A TURN WAS ADVISED TO ATC TO AVOID TFC WITH A CONSTANT SIGHTING OF VFR ACFT. NO FURTHER PROBS. VFR ACFT WAS FLYING BTWN LAYERS OF CLOUDS, THE VISIBILITY WAS ABOUT 10 MI. THE TIME FRAME FROM THE NOTIFICATION OF THE VFR ACFT TO THE ACTUAL TURN TO AVOID THE PLANE WAS ABOUT 5 SECONDS.
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.