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Sna controller described TCAS event reportedly initiated by both the use of visual separation and noise abatement procedures.
| Attributes | |
| ACN | 700911 |
| Time | |
| Date | 200606 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sna.airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : sna.tower |
| Operator | general aviation : corporate |
| Make Model Name | Falcon 50 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : sna.tower |
| Operator | general aviation : corporate |
| Make Model Name | Citation Excel |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller time certified in position1 : 19 |
| ASRS Report | 700911 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | aircraft equipment : tcas other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Airport FAA ATC Human Performance |
| Air Traffic Incident | ATC Human Performance |
Narrative:
The FA50 departed sna. The C56X departed in trail and was instructed to 'maintain visual separation' from the FA50. The aircraft were initially the same heading; but on different departure sids. The FA50 pilot had set the aircraft for a noise abatement type climb. As a result the C65X passed the FA50 about 8 NM south of the airport. The sna noise abatement is antiquated and potentially dangerous.
Original NASA ASRS Text
Title: SNA CTLR DESCRIBED TCAS EVENT REPORTEDLY INITIATED BY BOTH THE USE OF VISUAL SEPARATION AND NOISE ABATEMENT PROCS.
Narrative: THE FA50 DEPARTED SNA. THE C56X DEPARTED IN TRAIL AND WAS INSTRUCTED TO 'MAINTAIN VISUAL SEPARATION' FROM THE FA50. THE ACFT WERE INITIALLY THE SAME HDG; BUT ON DIFFERENT DEP SIDS. THE FA50 PLT HAD SET THE ACFT FOR A NOISE ABATEMENT TYPE CLB. AS A RESULT THE C65X PASSED THE FA50 ABOUT 8 NM S OF THE ARPT. THE SNA NOISE ABATEMENT IS ANTIQUATED AND POTENTIALLY DANGEROUS.
Data retrieved from NASA's ASRS site as of January 2009 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.