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Aircraft on a radar vector to ILS final approach course when another aircraft passed in front with less than standard separation.
| Attributes | |
| ACN | 157609 |
| Time | |
| Date | 199009 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : pit |
| State Reference | PA |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pit |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 180 flight time total : 2010 flight time type : 750 |
| ASRS Report | 157609 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
While flying at an assigned altitude of 4000' and a heading of 360 degrees, it is believed that another aircraft was given a descent from 5000 to 4000'. 3-5 mins later I observed an small transport pass from right to left in front of the aircraft. This all occurred at a heavy traffic time of the day and the controller was working several aircraft. He seemed overloaded.
Original NASA ASRS Text
Title: ACFT ON A RADAR VECTOR TO ILS FINAL APCH COURSE WHEN ANOTHER ACFT PASSED IN FRONT WITH LESS THAN STANDARD SEPARATION.
Narrative: WHILE FLYING AT AN ASSIGNED ALT OF 4000' AND A HDG OF 360 DEGS, IT IS BELIEVED THAT ANOTHER ACFT WAS GIVEN A DSNT FROM 5000 TO 4000'. 3-5 MINS LATER I OBSERVED AN SMT PASS FROM RIGHT TO LEFT IN FRONT OF THE ACFT. THIS ALL OCCURRED AT A HEAVY TFC TIME OF THE DAY AND THE CTLR WAS WORKING SEVERAL ACFT. HE SEEMED OVERLOADED.
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.