<< >> NASA ASRS Report 120254, August 1989

Private pilot reports conflict with another general aviation aircraft while maneuvering to enter the traffic pattern at a non tower airport (P10)

Attributes
ACN	120254
Time
Date	198908
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : p10
State Reference	AZ
Altitude	msl bound lower : 3400 msl bound upper : 3400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other cruise other descent other
Flight Plan	None
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude climbout : takeoff
Person 1
Affiliation	Other
Function	oversight : pic
Experience	flight time last 90 days : 50 flight time total : 1050 flight time type : 200
ASRS Report	120254
Person 2
Affiliation	Other
Function	oversight : pic
Events
Anomaly	conflict : airborne less severe other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 2000 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Although this situation involved a conflict that did not require evasive action, it points out one of the problems at uncontrolled airports. We were west of the uncontrolled airport transitioning to the south to make a standard 45 degree entry to downwind. Our position and intentions were announced on unicom. Another aircraft made a straight out departure rather than a standard downwind departure. This straight out departure caused the conflict, and points out that the many nonstandard flight activities that frequently must go on at uncontrolled airports. I feel there is a need to do things in a standard way at uncontrolled airports especially, because of the diversity of traffic, such as no radio aircraft. Self-preservation requires that an extra measure of see and be seen be used near uncontrolled airports.

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Original NASA ASRS Text

Title: PRIVATE PLT REPORTS CONFLICT WITH ANOTHER GENERAL AVIATION ACFT WHILE MANEUVERING TO ENTER THE TRAFFIC PATTERN AT A NON TWR ARPT (P10)

Narrative: ALTHOUGH THIS SITUATION INVOLVED A CONFLICT THAT DID NOT REQUIRE EVASIVE ACTION, IT POINTS OUT ONE OF THE PROBLEMS AT UNCONTROLLED ARPTS. WE WERE WEST OF THE UNCONTROLLED ARPT TRANSITIONING TO THE SOUTH TO MAKE A STANDARD 45 DEG ENTRY TO DOWNWIND. OUR POSITION AND INTENTIONS WERE ANNOUNCED ON UNICOM. ANOTHER ACFT MADE A STRAIGHT OUT DEP RATHER THAN A STANDARD DOWNWIND DEP. THIS STRAIGHT OUT DEP CAUSED THE CONFLICT, AND POINTS OUT THAT THE MANY NONSTANDARD FLT ACTIVITIES THAT FREQUENTLY MUST GO ON AT UNCONTROLLED ARPTS. I FEEL THERE IS A NEED TO DO THINGS IN A STANDARD WAY AT UNCONTROLLED ARPTS ESPECIALLY, BECAUSE OF THE DIVERSITY OF TFC, SUCH AS NO RADIO ACFT. SELF-PRESERVATION REQUIRES THAT AN EXTRA MEASURE OF SEE AND BE SEEN BE USED NEAR UNCONTROLLED ARPTS.

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.