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C182 on upwind at ffz experienced near midair collision with traffic entering pattern for parallel runway; no traffic issued; suggested probable lack of controller coordination.
| Attributes | |
| ACN | 783009 |
| Time | |
| Date | 200804 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ffz.airport |
| State Reference | AZ |
| Altitude | msl single value : 2200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : ffz.tower |
| Operator | general aviation : personal |
| Make Model Name | Skylane 182/RG Turbo Skylane/RG |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial |
| Flight Plan | None |
| Aircraft 2 | |
| Controlling Facilities | tower : ffz.tower |
| Make Model Name | DA42 Twin Star |
| Flight Phase | descent : approach |
| Route In Use | approach : traffic pattern |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : commercial pilot : atp pilot : multi engine pilot : flight engineer |
| Experience | flight time last 90 days : 10 flight time total : 22600 flight time type : 1372 |
| ASRS Report | 783009 |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 0 vertical : 20 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Ambiguous |
Narrative:
On upwind after touch-and-go; a twin diamond STAR crossed over my aircraft from 5 O'clock - 11 O'clock position about 20 ft above me. The tower was using split frequencys at the time with no contact or coordination between tower controllers. I told my controller of the situation and he said he would tell the other controller what had happened. I think someone in the cabin attendant should monitor both frequencys to watch for situations like this. The traffic at ffz has increased so much that the tower cabin attendant may need higher rated controllers to keep a good level of safety. Also; the number of students in the pattern at any given time may need to be limited.
Original NASA ASRS Text
Title: C182 ON UPWIND AT FFZ EXPERIENCED NMAC WITH TFC ENTERING PATTERN FOR PARALLEL RWY; NO TFC ISSUED; SUGGESTED PROBABLE LACK OF CTLR COORD.
Narrative: ON UPWIND AFTER TOUCH-AND-GO; A TWIN DIAMOND STAR CROSSED OVER MY ACFT FROM 5 O'CLOCK - 11 O'CLOCK POS ABOUT 20 FT ABOVE ME. THE TWR WAS USING SPLIT FREQS AT THE TIME WITH NO CONTACT OR COORD BTWN TWR CTLRS. I TOLD MY CTLR OF THE SITUATION AND HE SAID HE WOULD TELL THE OTHER CTLR WHAT HAD HAPPENED. I THINK SOMEONE IN THE CAB SHOULD MONITOR BOTH FREQS TO WATCH FOR SITUATIONS LIKE THIS. THE TFC AT FFZ HAS INCREASED SO MUCH THAT THE TWR CAB MAY NEED HIGHER RATED CTLRS TO KEEP A GOOD LEVEL OF SAFETY. ALSO; THE NUMBER OF STUDENTS IN THE PATTERN AT ANY GIVEN TIME MAY NEED TO BE LIMITED.
Data retrieved from NASA's ASRS site as of May 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.