|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||atc facility : srp|
|Altitude||msl bound lower : 8000|
msl bound upper : 8000
|Operator||general aviation : personal|
|Make Model Name||Small Aircraft, Low Wing, 1 Eng, Retractable Gear|
|Route In Use||enroute airway : phx|
|Make Model Name||Any Unknown or Unlisted Aircraft Manufacturer|
|Flight Phase||cruise other|
|Function||instruction : instructor|
|Qualification||pilot : instrument|
pilot : commercial
pilot : cfi
|Experience||flight time last 90 days : 210|
flight time total : 1100
flight time type : 3
|Function||flight crew : single pilot|
|Anomaly||conflict : nmac|
non adherence : far
|Independent Detector||other flight crewa|
|Resolutory Action||flight crew : took evasive action|
|Miss Distance||horizontal : 750|
vertical : 50
|Primary Problem||Flight Crew Human Performance|
My student and I were instrument training, after entering a holding pattern at knobb intersection we were notified by phx TRACON of a collision alert. My student looked up. Saw the aircraft, rolled inverted and dove to avoid a collision. The problem was that the controller did not make either the other aircraft or us known to each other. The other aircraft was IFR, we were VFR. Apparently the frequency was congested at the time, preventing the controller from advising either of us of each other.
Original NASA ASRS Text
Title: AFTER SAFETY ALERT FROM APCH CTLR SMA TOOK EVASIVE ACTION TO MISS IFR TRAFFIC AT SAME ALT.
Narrative: MY STUDENT AND I WERE INSTRUMENT TRNING, AFTER ENTERING A HOLDING PATTERN AT KNOBB INTXN WE WERE NOTIFIED BY PHX TRACON OF A COLLISION ALERT. MY STUDENT LOOKED UP. SAW THE ACFT, ROLLED INVERTED AND DOVE TO AVOID A COLLISION. THE PROB WAS THAT THE CTLR DID NOT MAKE EITHER THE OTHER ACFT OR US KNOWN TO EACH OTHER. THE OTHER ACFT WAS IFR, WE WERE VFR. APPARENTLY THE FREQ WAS CONGESTED AT THE TIME, PREVENTING THE CTLR FROM ADVISING EITHER OF US OF EACH OTHER.
Data retrieved from NASA's ASRS site as of August 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.