Near midair collision at uncontrolled airport involving ILS approachs and opposite direction runway ...

Attributes
ACN	89334
Time
Date	198806
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : oxc
State Reference	CT
Altitude	msl bound lower : 100 msl bound upper : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : initial climbout : takeoff
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	descent : approach landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	observation : observer
Qualification	pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 1000
ASRS Report	89334
Person 2
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1000 vertical : 150
Supplementary
Primary Problem	Flight Crew Human Performance
Situations
Airport	procedure or policy : unspecified

Narrative:

In between students I was watching local traffic at oxc. As is customary, even though runway 18 was active, people were practicing the ILS 36 approach. I observed an small aircraft X taking off runway 18. At the same time an small aircraft Y following the ILS 36 on a 1/4 mi final. The small aircraft Y appeared to be continuing for landing. At approximately 100' AGL both aircraft appeared to notice each other and took evasive action. It appears that permitting converging approachs to minimums at uncontrolled fields will eventually lead to more midairs (eg, san luis obispo several yrs ago). As an instrument I feel more vulnerable to this situation because of my continuous use of uncontrolled air fields. Pilot education and enforcement should stress safety at uncontrolled fields. Callback conversation with reporter revealed the following: reporter expressed great concern about the frequency of this near midair collision situation. He is a flight instrument and feels students in training have enough to consider west/O this dangerous situation of head on traffic. Feels aim or far's should be specific about limits for practice approachs at uncontrolled airports.

Original NASA ASRS Text

Title: NMAC AT UNCONTROLLED ARPT INVOLVING ILS APCHS AND OPPOSITE DIRECTION RWY IN USE.

Narrative: IN BTWN STUDENTS I WAS WATCHING LCL TFC AT OXC. AS IS CUSTOMARY, EVEN THOUGH RWY 18 WAS ACTIVE, PEOPLE WERE PRACTICING THE ILS 36 APCH. I OBSERVED AN SMA X TAKING OFF RWY 18. AT THE SAME TIME AN SMA Y FOLLOWING THE ILS 36 ON A 1/4 MI FINAL. THE SMA Y APPEARED TO BE CONTINUING FOR LNDG. AT APPROX 100' AGL BOTH ACFT APPEARED TO NOTICE EACH OTHER AND TOOK EVASIVE ACTION. IT APPEARS THAT PERMITTING CONVERGING APCHS TO MINIMUMS AT UNCTLED FIELDS WILL EVENTUALLY LEAD TO MORE MIDAIRS (EG, SAN LUIS OBISPO SEVERAL YRS AGO). AS AN INSTR I FEEL MORE VULNERABLE TO THIS SITUATION BECAUSE OF MY CONTINUOUS USE OF UNCTLED AIR FIELDS. PLT EDUCATION AND ENFORCEMENT SHOULD STRESS SAFETY AT UNCTLED FIELDS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR EXPRESSED GREAT CONCERN ABOUT THE FREQ OF THIS NMAC SITUATION. HE IS A FLT INSTR AND FEELS STUDENTS IN TRNING HAVE ENOUGH TO CONSIDER W/O THIS DANGEROUS SITUATION OF HEAD ON TFC. FEELS AIM OR FAR'S SHOULD BE SPECIFIC ABOUT LIMITS FOR PRACTICE APCHS AT UNCTLED 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.

Near midair collision at uncontrolled airport involving ILS approachs and opposite direction runway in use.