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Near midair collision with commuter light transport. Operational error as B737 descends towards and through occupied altitude in the phx TCA, class B airspace. TA not given. Evasive action descent.
| Attributes | |
| ACN | 354091 |
| Time | |
| Date | 199611 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : phx |
| State Reference | AZ |
| Altitude | msl bound lower : 7000 msl bound upper : 7500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : phx |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | departure other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 5300 flight time type : 3500 |
| ASRS Report | 354091 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac non adherence : required legal separation non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 500 vertical : 400 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error other |
Narrative:
Departing from phx en route to flg. Departure control gave us a climb to 7500 ft. We leveled off at 7500 ft for about 2 mins then got a TCASII alert. We looked for traffic and saw a B737 at 3 O'clock position at about our altitude. The TCASII painted the B737 at 2 O'clock position and 500 ft above and descending. At that time we began a descent to 7000 ft. As the B737 went over us the TCASII had shown a altitude difference of 300 ft. After the descent we asked ATC about the traffic and he said we had 500 ft separation and that was ok. We told the controller that that was a little too close for us.
Original NASA ASRS Text
Title: NMAC WITH COMMUTER LTT. OPERROR AS B737 DSNDS TOWARDS AND THROUGH OCCUPIED ALT IN THE PHX TCA, CLASS B AIRSPACE. TA NOT GIVEN. EVASIVE ACTION DSCNT.
Narrative: DEPARTING FROM PHX ENRTE TO FLG. DEP CTL GAVE US A CLB TO 7500 FT. WE LEVELED OFF AT 7500 FT FOR ABOUT 2 MINS THEN GOT A TCASII ALERT. WE LOOKED FOR TFC AND SAW A B737 AT 3 O'CLOCK POS AT ABOUT OUR ALT. THE TCASII PAINTED THE B737 AT 2 O'CLOCK POS AND 500 FT ABOVE AND DSNDING. AT THAT TIME WE BEGAN A DSCNT TO 7000 FT. AS THE B737 WENT OVER US THE TCASII HAD SHOWN A ALT DIFFERENCE OF 300 FT. AFTER THE DSCNT WE ASKED ATC ABOUT THE TFC AND HE SAID WE HAD 500 FT SEPARATION AND THAT WAS OK. WE TOLD THE CTLR THAT THAT WAS A LITTLE TOO CLOSE FOR US.
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.