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TRACON departure controller apparently does not observe a C650 departure overtake situation with preceding B737. C650 reacts to TCASII alert, overtakes and out climbs the B737. Reporter claims tower and management not correctly responding to similar complaints.
| Attributes | |
| ACN | 394516 |
| Time | |
| Date | 199802 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : pxr airport : phx |
| State Reference | AZ |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | tracon : phx tower : phx tower : pwk |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other departure sid : sid |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Citation III, VI, VII |
| Operating Under FAR Part | Part 91 |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller non radar : 13 controller radar : 3 |
| ASRS Report | 394516 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 2000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Aircraft #2 (C650) cleared on eagul SID immediately behind B73A (aircraft #1) on sjn SID. The C650 followed the B737 on same flight path with overtake of 40 KTS. Departure had no knowledge of separation applied by tower. C650 had to deviate from SID to avoid slower traffic ahead. Phx ATCT frequency misapplies visual separation (if there was any in this case) by failing to take aircraft performance into account, and fails to issue appropriate control instructions. This scenario has been brought previously to the facility's attention, but falls on deaf ears.
Original NASA ASRS Text
Title: TRACON DEP CTLR APPARENTLY DOES NOT OBSERVE A C650 DEP OVERTAKE SIT WITH PRECEDING B737. C650 REACTS TO TCASII ALERT, OVERTAKES AND OUT CLBS THE B737. RPTR CLAIMS TWR AND MGMNT NOT CORRECTLY RESPONDING TO SIMILAR COMPLAINTS.
Narrative: ACFT #2 (C650) CLRED ON EAGUL SID IMMEDIATELY BEHIND B73A (ACFT #1) ON SJN SID. THE C650 FOLLOWED THE B737 ON SAME FLT PATH WITH OVERTAKE OF 40 KTS. DEP HAD NO KNOWLEDGE OF SEPARATION APPLIED BY TWR. C650 HAD TO DEVIATE FROM SID TO AVOID SLOWER TFC AHEAD. PHX ATCT FREQ MISAPPLIES VISUAL SEPARATION (IF THERE WAS ANY IN THIS CASE) BY FAILING TO TAKE ACFT PERFORMANCE INTO ACCOUNT, AND FAILS TO ISSUE APPROPRIATE CTL INSTRUCTIONS. THIS SCENARIO HAS BEEN BROUGHT PREVIOUSLY TO THE FACILITY'S ATTN, BUT FALLS ON DEAF EARS.
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.