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Controller complaint about using ASR-9 for final monitor purposes which require one sixteenth NM separation. Says ASR-9 not good enough for this type separation on simultaneous lda ILS approachs.
| Attributes | |
| ACN | 321941 |
| Time | |
| Date | 199511 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl tower : iad |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 13 |
| ASRS Report | 321941 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Navigational Facility |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Lambert controllers are required to separate aircraft by 1/16 of a mi when we run lda approachs. This is too close, allowing no margin of error. Our ASR-9 is not working with this type of simultaneous approach. No one seems to care.
Original NASA ASRS Text
Title: CTLR COMPLAINT ABOUT USING ASR-9 FOR FINAL MONITOR PURPOSES WHICH REQUIRE ONE SIXTEENTH NM SEPARATION. SAYS ASR-9 NOT GOOD ENOUGH FOR THIS TYPE SEPARATION ON SIMULTANEOUS LDA ILS APCHS.
Narrative: LAMBERT CTLRS ARE REQUIRED TO SEPARATE ACFT BY 1/16 OF A MI WHEN WE RUN LDA APCHS. THIS IS TOO CLOSE, ALLOWING NO MARGIN OF ERROR. OUR ASR-9 IS NOT WORKING WITH THIS TYPE OF SIMULTANEOUS APCH. NO ONE SEEMS TO CARE.
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.