Near midair collision in uncontrolled airport traffic pattern.

Attributes
ACN	292250
Time
Date	199412
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : l15
State Reference	NV
Altitude	msl bound lower : 3300 msl bound upper : 3300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air taxi
Make Model Name	Cessna 402/402C/B379 Businessliner/Utiliner
Operating Under FAR Part	Part 135
Flight Phase	landing other other
Flight Plan	VFR
Aircraft 2
Operator	common carrier : air taxi
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	other
Flight Plan	VFR
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4985 flight time type : 3000
ASRS Report	292250
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
ASRS Report	292250
Events
Anomaly	conflict : ground critical conflict : nmac other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

It was a beautiful day at the las vegas-henderson sky harbor airport, an uncontrolled airport with unicom. Several grand canyon sightseeing aircraft were entering the pattern along with an itinerant comanche. The comanche pilot (not 1 of the rptrs) may not have conformed to the traffic pattern as well as the sightseeing pilots would have liked. Reporter 1 had to take evasive action to avoid the comanche. Reporter 2 sent the ASRS a statement supporting reporter 1. The comanche pilot complained to the office personnel about the reporter 1's flight pattern. It appears that the comanche was the aircraft at fault. He caused reporter 1 to take evasive action and nearly caused reporter 1 to go around because he did not clear the runway in a timely fashion. Reporter 1's aircraft had 1 pilot. Reporter 2 was in another aircraft with 2 pilots operated by the same sightseeing company as reporter 1.

Original NASA ASRS Text

Title: NMAC IN UNCTLED ARPT TFC PATTERN.

Narrative: IT WAS A BEAUTIFUL DAY AT THE LAS VEGAS-HENDERSON SKY HARBOR ARPT, AN UNCTLED ARPT WITH UNICOM. SEVERAL GRAND CANYON SIGHTSEEING ACFT WERE ENTERING THE PATTERN ALONG WITH AN ITINERANT COMANCHE. THE COMANCHE PLT (NOT 1 OF THE RPTRS) MAY NOT HAVE CONFORMED TO THE TFC PATTERN AS WELL AS THE SIGHTSEEING PLTS WOULD HAVE LIKED. RPTR 1 HAD TO TAKE EVASIVE ACTION TO AVOID THE COMANCHE. RPTR 2 SENT THE ASRS A STATEMENT SUPPORTING RPTR 1. THE COMANCHE PLT COMPLAINED TO THE OFFICE PERSONNEL ABOUT THE RPTR 1'S FLT PATTERN. IT APPEARS THAT THE COMANCHE WAS THE ACFT AT FAULT. HE CAUSED RPTR 1 TO TAKE EVASIVE ACTION AND NEARLY CAUSED RPTR 1 TO GAR BECAUSE HE DID NOT CLR THE RWY IN A TIMELY FASHION. RPTR 1'S ACFT HAD 1 PLT. RPTR 2 WAS IN ANOTHER ACFT WITH 2 PLTS OPERATED BY THE SAME SIGHTSEEING COMPANY AS RPTR 1.

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.