 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier X had less than standard separation from small aircraft Y on multiple runway approach operation intersecting runway approachs. System error.
| Attributes | |
| ACN | 215427 |
| Time | |
| Date | 199207 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : mem |
| State Reference | TN |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mem |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent : approach descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 4 controller radar : 10 |
| ASRS Report | 215427 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | none taken : insufficient time |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 500 vertical : 200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Inter Facility Coordination Failure |
Narrative:
I was working air carrier X for ILS runway 18R had accepted a pointout on small aircraft Y 10 west of field eastbound for right downwind ILS runway 27 at 3000 ft. I was late getting air carrier X descended and when switching him to the tower the ARTS IIIA conflict alert sounded, I issued traffic but am sure air carrier X had already switched. Small aircraft Y was almost over the OM eastbound and I had assumed he would have been much further south but had failed to monitor his position as required. I had allowed my expectation to affect my awareness and should have specified a restriction during the pointout if I wanted small aircraft Y further south.
Original NASA ASRS Text
Title: ACR X HAD LTSS FROM SMA Y ON MULTIPLE RWY APCH OP INTERSECTING RWY APCHS. SYS ERROR.
Narrative: I WAS WORKING ACR X FOR ILS RWY 18R HAD ACCEPTED A POINTOUT ON SMA Y 10 W OF FIELD EBOUND FOR R DOWNWIND ILS RWY 27 AT 3000 FT. I WAS LATE GETTING ACR X DSNDED AND WHEN SWITCHING HIM TO THE TWR THE ARTS IIIA CONFLICT ALERT SOUNDED, I ISSUED TFC BUT AM SURE ACR X HAD ALREADY SWITCHED. SMA Y WAS ALMOST OVER THE OM EBOUND AND I HAD ASSUMED HE WOULD HAVE BEEN MUCH FURTHER S BUT HAD FAILED TO MONITOR HIS POS AS REQUIRED. I HAD ALLOWED MY EXPECTATION TO AFFECT MY AWARENESS AND SHOULD HAVE SPECIFIED A RESTRICTION DURING THE POINTOUT IF I WANTED SMA Y FURTHER S.
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.