A grumman AA5 has an near midair collision with an unknown cpr jet on or near short final at 8a0, al...

Attributes
ACN	430951
Time
Date	199903
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : 8a0.airport
State Reference	AL
Altitude	agl single value : 500
Environment
Flight Conditions	VMC
Light	Daylight Night
Aircraft 1
Operator	general aviation : personal
Make Model Name	Cheetah, Tiger, Traveler
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : intermediate altitude landing : go around
Route In Use	approach : traffic pattern
Flight Plan	None
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : intermediate altitude descent : approach
Route In Use	approach : straight in
Flight Plan	IFR Combined VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : multi engine pilot : instrument
Experience	flight time last 90 days : 90 flight time total : 3410 flight time type : 105
ASRS Report	430951
Person 2
Affiliation	other
Function	observation : passenger
Events
Anomaly	conflict : nmac non adherence : required legal separation non adherence : far other spatial deviation
Independent Detector	other flight crewa other other : pax 2
Resolutory Action	flight crew : executed go around flight crew : took evasive action
Miss Distance	horizontal : 300 vertical : 100
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Entered 8a0 landing pattern via crosswind leg, downwind, base leg. Announced position on CTAF in the blind on downwind and base. On base, my passenger and myself saw cpr turbine aircraft on straight-in to runway 5 (no pattern entry). I was monitoring CTAF and did not hear any announcements. Human factors: my passenger was talking to me on intercom, making monitoring CTAF more difficult. We took evasive action and left the pattern wbound while announcing our intentions. We still never heard any announcement on CTAF from turbine until a few mins later he announced on short final. We then re-entered the pattern again from a 45 degree to downwind. We landed well after turbine which was taking on fuel for a 'quick turn' on the ramp as we cleared the active.

Original NASA ASRS Text

Title: A GRUMMAN AA5 HAS AN NMAC WITH AN UNKNOWN CPR JET ON OR NEAR SHORT FINAL AT 8A0, AL.

Narrative: ENTERED 8A0 LNDG PATTERN VIA XWIND LEG, DOWNWIND, BASE LEG. ANNOUNCED POS ON CTAF IN THE BLIND ON DOWNWIND AND BASE. ON BASE, MY PAX AND MYSELF SAW CPR TURBINE ACFT ON STRAIGHT-IN TO RWY 5 (NO PATTERN ENTRY). I WAS MONITORING CTAF AND DID NOT HEAR ANY ANNOUNCEMENTS. HUMAN FACTORS: MY PAX WAS TALKING TO ME ON INTERCOM, MAKING MONITORING CTAF MORE DIFFICULT. WE TOOK EVASIVE ACTION AND LEFT THE PATTERN WBOUND WHILE ANNOUNCING OUR INTENTIONS. WE STILL NEVER HEARD ANY ANNOUNCEMENT ON CTAF FROM TURBINE UNTIL A FEW MINS LATER HE ANNOUNCED ON SHORT FINAL. WE THEN RE-ENTERED THE PATTERN AGAIN FROM A 45 DEG TO DOWNWIND. WE LANDED WELL AFTER TURBINE WHICH WAS TAKING ON FUEL FOR A 'QUICK TURN' ON THE RAMP AS WE CLRED THE ACTIVE.

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.