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While on vectors for an approach in mixed flight conditions an large transport had a conflict with an unidentified small aircraft.
| Attributes | |
| ACN | 111274 |
| Time | |
| Date | 198905 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : jax |
| State Reference | FL |
| Altitude | msl bound lower : 1400 msl bound upper : 1600 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : jax |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other descent : approach |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 175 flight time total : 16000 flight time type : 4000 |
| ASRS Report | 111274 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 6000 flight time type : 1200 |
| ASRS Report | 111491 |
| Events | |
| Anomaly | conflict : nmac conflict : airborne less severe |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | horizontal : 600 vertical : 500 |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While on vectors by jax approach control to intercept runway 25 localizer at jax and on assigned altitude of 1600 MSL, a small single engine aircraft appeared from behind a cloud headed northeast bound at about 1700 MSL. I pushed nose over and was at about 1400 MSL when other aircraft passed to the right. We were headed swbnd. I climbed back to 1600 MSL. Sometime during the above incident jax approach control called and issued a warning about the other aircraft. Our flight continued to jax and landed without further incident.
Original NASA ASRS Text
Title: WHILE ON VECTORS FOR AN APCH IN MIXED FLT CONDITIONS AN LGT HAD A CONFLICT WITH AN UNIDENTIFIED SMA.
Narrative: WHILE ON VECTORS BY JAX APCH CTL TO INTERCEPT RWY 25 LOC AT JAX AND ON ASSIGNED ALT OF 1600 MSL, A SMALL SINGLE ENGINE ACFT APPEARED FROM BEHIND A CLOUD HEADED NE BOUND AT ABOUT 1700 MSL. I PUSHED NOSE OVER AND WAS AT ABOUT 1400 MSL WHEN OTHER ACFT PASSED TO THE RIGHT. WE WERE HEADED SWBND. I CLIMBED BACK TO 1600 MSL. SOMETIME DURING THE ABOVE INCIDENT JAX APCH CTL CALLED AND ISSUED A WARNING ABOUT THE OTHER ACFT. OUR FLT CONTINUED TO JAX AND LANDED WITHOUT FURTHER INCIDENT.
Data retrieved from NASA's ASRS site as of August 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.