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Small aircraft X and military aircraft Y had less than standard separation in arsa. Near midair collision. System error.
| Attributes | |
| ACN | 136371 |
| Time | |
| Date | 199001 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : abq |
| State Reference | NM |
| Altitude | msl bound lower : 7500 msl bound upper : 7500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : abq artcc : zny |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | VFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Military Trainer |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 8 controller non radar : 3 controller radar : 14 controller supervisory : 2 |
| ASRS Report | 136371 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 0 vertical : 100 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Operational error report XXX overflt small aircraft X was not transponder equipped, and therefore was being manually tracked with ARTS IIIA. Radar antenna on airport, data tag dropped off as small aircraft X proceeded over airport and controller involved forgot to manually reacquire aircraft. Failure/inability of equipment to automatic-acquire was major contributor to this operational error.
Original NASA ASRS Text
Title: SMA X AND MIL ACFT Y HAD LESS THAN STANDARD SEPARATION IN ARSA. NMAC. SYSTEM ERROR.
Narrative: OPERATIONAL ERROR REPORT XXX OVERFLT SMA X WAS NOT XPONDER EQUIPPED, AND THEREFORE WAS BEING MANUALLY TRACKED WITH ARTS IIIA. RADAR ANTENNA ON ARPT, DATA TAG DROPPED OFF AS SMA X PROCEEDED OVER ARPT AND CTLR INVOLVED FORGOT TO MANUALLY REACQUIRE ACFT. FAILURE/INABILITY OF EQUIPMENT TO AUTO-ACQUIRE WAS MAJOR CONTRIBUTOR TO THIS OPERATIONAL ERROR.
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.