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CFI and student in a BE76 at prc conflicted with traffic on right traffic for runways 21 as they were turning outbound in a holding pattern at humty.
| Attributes | |
| ACN | 519118 |
| Time | |
| Date | 200107 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | intersection : humty |
| State Reference | AZ |
| Altitude | msl single value : 6700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab.artcc tower : mmu.tower |
| Operator | general aviation : instructional |
| Make Model Name | Duchess 76 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : holding |
| Flight Plan | None |
| Aircraft 2 | |
| Controlling Facilities | tower : prc.tower |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | descent : approach |
| Route In Use | approach : traffic pattern |
| Person 1 | |
| Affiliation | other |
| Function | instruction : instructor |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine pilot : cfi |
| Experience | flight time last 90 days : 100 flight time total : 1600 flight time type : 550 |
| ASRS Report | 519118 |
| Person 2 | |
| Affiliation | other |
| Function | instruction : trainee |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure non adherence : far |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | controller : issued advisory |
| Miss Distance | horizontal : 300 vertical : 440 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Ambiguous |
| Air Traffic Incident | other |
Narrative:
While on practice ILS DME runway 21L approach, we were told to hold at humty (we were not given altitude or direction of hold). We entered a standard holding pattern (northeast of humty on localizer right turns). As we turned outbound, I saw an aircraft fly below and to my left approximately 400 ft lower and approximately 200 ft horizontal. I announced traffic that appeared to be right base in sight. We were operating on frequency 128.75. Traffic in the pattern were using frequency 125.30. The class D airspace was extremely busy and we were unable to make several calls due to frequency congestion. Also, the controller was giving only basic traffic reports (ie, 'traffic in the area'). We were never issued traffic in the traffic pattern or informed that the downwind/base was about 4-5 NM extended. Installation of radar at this busy airport would have averted this situation.
Original NASA ASRS Text
Title: CFI AND STUDENT IN A BE76 AT PRC CONFLICTED WITH TFC ON R TFC FOR RWYS 21 AS THEY WERE TURNING OUTBOUND IN A HOLDING PATTERN AT HUMTY.
Narrative: WHILE ON PRACTICE ILS DME RWY 21L APCH, WE WERE TOLD TO HOLD AT HUMTY (WE WERE NOT GIVEN ALT OR DIRECTION OF HOLD). WE ENTERED A STANDARD HOLDING PATTERN (NE OF HUMTY ON LOC R TURNS). AS WE TURNED OUTBOUND, I SAW AN ACFT FLY BELOW AND TO MY L APPROX 400 FT LOWER AND APPROX 200 FT HORIZ. I ANNOUNCED TFC THAT APPEARED TO BE R BASE IN SIGHT. WE WERE OPERATING ON FREQ 128.75. TFC IN THE PATTERN WERE USING FREQ 125.30. THE CLASS D AIRSPACE WAS EXTREMELY BUSY AND WE WERE UNABLE TO MAKE SEVERAL CALLS DUE TO FREQ CONGESTION. ALSO, THE CTLR WAS GIVING ONLY BASIC TFC RPTS (IE, 'TFC IN THE AREA'). WE WERE NEVER ISSUED TFC IN THE TFC PATTERN OR INFORMED THAT THE DOWNWIND/BASE WAS ABOUT 4-5 NM EXTENDED. INSTALLATION OF RADAR AT THIS BUSY ARPT WOULD HAVE AVERTED THIS SIT.
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.