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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An air carrier B727 flight crew reacts properly to an 'RA' and evades from another 400 ft above them in a head-on pass on an airway. They notified the ARTCC controller of their action and the other aircraft's presence.
| Attributes | |
| ACN | 372095 |
| Time | |
| Date | 199706 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ddp |
| State Reference | PR |
| Altitude | msl bound lower : 27700 msl bound upper : 28000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : mjzs |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 372095 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 700 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error other |
Narrative:
While in level flight at FL280 northbound on A300, we received a TA followed shortly by an RA. The other aircraft was +400 ft sbound. No visual. We followed the TCASII instructions and descended to FL277. ATC and dispatch were both notified. The other sbound aircraft was level at FL284 which caused a TCASII RA.
Original NASA ASRS Text
Title: AN ACR B727 FLC REACTS PROPERLY TO AN 'RA' AND EVADES FROM ANOTHER 400 FT ABOVE THEM IN A HEAD-ON PASS ON AN AIRWAY. THEY NOTIFIED THE ARTCC CTLR OF THEIR ACTION AND THE OTHER ACFT'S PRESENCE.
Narrative: WHILE IN LEVEL FLT AT FL280 NBOUND ON A300, WE RECEIVED A TA FOLLOWED SHORTLY BY AN RA. THE OTHER ACFT WAS +400 FT SBOUND. NO VISUAL. WE FOLLOWED THE TCASII INSTRUCTIONS AND DSNDED TO FL277. ATC AND DISPATCH WERE BOTH NOTIFIED. THE OTHER SBOUND ACFT WAS LEVEL AT FL284 WHICH CAUSED A TCASII RA.
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.