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The flight crew of an air carrier B737 evades a PA46 at FL280. TCASII showed 800 ft vertical miss distance after the B737 started down.
| Attributes | |
| ACN | 364418 |
| Time | |
| Date | 199703 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : bty |
| State Reference | NV |
| Altitude | msl bound lower : 28000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zlc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | PA-46 Malibu |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 12000 flight time type : 1000 |
| ASRS Report | 364418 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : published procedure non adherence : far non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Pilot Deviation Operational Error other |
Narrative:
Both aircraft on collision course at FL280. Got a TCASII RA and descended. Aircraft passed 800 ft above us at FL280. Major fatalities if we did not descend.
Original NASA ASRS Text
Title: THE FLC OF AN ACR B737 EVADES A PA46 AT FL280. TCASII SHOWED 800 FT VERT MISS DISTANCE AFTER THE B737 STARTED DOWN.
Narrative: BOTH ACFT ON COLLISION COURSE AT FL280. GOT A TCASII RA AND DSNDED. ACFT PASSED 800 FT ABOVE US AT FL280. MAJOR FATALITIES IF WE DID NOT DSND.
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.