<< >> NASA ASRS Report 155580, August 1990

CFI and student flying under hood have near midair collision with corp light transport while flying the transition route for the ILS DME runway 21 approach into prc.

Attributes
ACN	155580
Time
Date	199008
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : drk airport : prc
State Reference	AZ
Altitude	msl bound lower : 8300 msl bound upper : 8300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : prc
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other cruise other
Flight Plan	None
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot instruction : instructor
Qualification	pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 250 flight time total : 900 flight time type : 200
ASRS Report	155580
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : private
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 0 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

I was acting as safety pilot to a friend of mine that is training for his INS rating. We were inbound to drake VOR on the intermediate segment of the VOR approach at prescott's love field. We planned on breaking the approach off at the VOR and proceeding outbnd on the drk 061 degree for the ILS 21 approach. When we were level at 8300' and 5 mi east F drk, I contacted prescott tower to inform them of our intentions to shoot the ILS to a full stop. Immediately after making our transmission I spotted an aft at our 12 O'clock position at same altitude. Before I could take the controls and take evasive action the aircraft passed directly overhead. It appears to be no more than 100' overhead. I feel that the lack of radar contributed to this incident. The other aircraft, a corp light transport, was in contact with the tower, and even though we were not at that point, they could have received an advisory from local.

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Original NASA ASRS Text

Title: CFI AND STUDENT FLYING UNDER HOOD HAVE NMAC WITH CORP LTT WHILE FLYING THE TRANSITION ROUTE FOR THE ILS DME RWY 21 APCH INTO PRC.

Narrative: I WAS ACTING AS SAFETY PLT TO A FRIEND OF MINE THAT IS TRNING FOR HIS INS RATING. WE WERE INBND TO DRAKE VOR ON THE INTERMEDIATE SEGMENT OF THE VOR APCH AT PRESCOTT'S LOVE FIELD. WE PLANNED ON BREAKING THE APCH OFF AT THE VOR AND PROCEEDING OUTBND ON THE DRK 061 DEG FOR THE ILS 21 APCH. WHEN WE WERE LEVEL AT 8300' AND 5 MI E F DRK, I CONTACTED PRESCOTT TWR TO INFORM THEM OF OUR INTENTIONS TO SHOOT THE ILS TO A FULL STOP. IMMEDIATELY AFTER MAKING OUR XMISSION I SPOTTED AN AFT AT OUR 12 O'CLOCK POS AT SAME ALT. BEFORE I COULD TAKE THE CTLS AND TAKE EVASIVE ACTION THE ACFT PASSED DIRECTLY OVERHEAD. IT APPEARS TO BE NO MORE THAN 100' OVERHEAD. I FEEL THAT THE LACK OF RADAR CONTRIBUTED TO THIS INCIDENT. THE OTHER ACFT, A CORP LTT, WAS IN CONTACT WITH THE TWR, AND EVEN THOUGH WE WERE NOT AT THAT POINT, THEY COULD HAVE RECEIVED AN ADVISORY FROM LCL.

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.