During approach to landing pilot has near midair collision.

Attributes
ACN	550917
Time
Date	200206
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : rnt.airport
State Reference	WA
Altitude	agl single value : 700
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : day.tracon
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern arrival : vfr
Flight Plan	VFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	PA-34-200 Seneca I
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern arrival : vfr
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : multi engine pilot : instrument
Experience	flight time last 90 days : 17 flight time total : 573 flight time type : 240
ASRS Report	550917
Person 2
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac non adherence : published procedure non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Was approaching from the sse. Control tower hours were closed, it was no longer class D. I was used to the twred approach from the sse. Runway 33 was in use, and the tower always brought traffic straight in. I was monitoring CTAF, made position calls. All seemed to be quiet and looked to be an uneventful approach/landing. Was making calls, stating straight in, 'traffic-permitting,' and then, about 2 mi out, began to hear calls of aircraft in or entering the pattern. About 1 mi out, heard a seneca call on the downwind. I continued to make calls. The seneca never acknowledged my calls. I knew he must be close, as he was faster. He called base about the time I was about one 1/2 mi out and stabilizing for the descent. Seconds later, I spotted him (first time), descending, approaching from my 2 O'clock position. I suspected he couldn't see me (or else was ignoring me). I hesitated for a second, and then made a rather abrupt 90+ degree descending right turn, going below him. At this point I was low, over a noise sensitive area. I wanted to clear out of any other base traffic. Made radio calls stating I was leaving the pattern.

Original NASA ASRS Text

Title: DURING APCH TO LNDG PLT HAS NMAC.

Narrative: WAS APCHING FROM THE SSE. CTL TWR HRS WERE CLOSED, IT WAS NO LONGER CLASS D. I WAS USED TO THE TWRED APCH FROM THE SSE. RWY 33 WAS IN USE, AND THE TWR ALWAYS BROUGHT TFC STRAIGHT IN. I WAS MONITORING CTAF, MADE POS CALLS. ALL SEEMED TO BE QUIET AND LOOKED TO BE AN UNEVENTFUL APCH/LNDG. WAS MAKING CALLS, STATING STRAIGHT IN, 'TFC-PERMITTING,' AND THEN, ABOUT 2 MI OUT, BEGAN TO HEAR CALLS OF ACFT IN OR ENTERING THE PATTERN. ABOUT 1 MI OUT, HEARD A SENECA CALL ON THE DOWNWIND. I CONTINUED TO MAKE CALLS. THE SENECA NEVER ACKNOWLEDGED MY CALLS. I KNEW HE MUST BE CLOSE, AS HE WAS FASTER. HE CALLED BASE ABOUT THE TIME I WAS ABOUT ONE 1/2 MI OUT AND STABILIZING FOR THE DSCNT. SECONDS LATER, I SPOTTED HIM (FIRST TIME), DESCENDING, APCHING FROM MY 2 O'CLOCK POS. I SUSPECTED HE COULDN'T SEE ME (OR ELSE WAS IGNORING ME). I HESITATED FOR A SECOND, AND THEN MADE A RATHER ABRUPT 90+ DEG DESCENDING R TURN, GOING BELOW HIM. AT THIS POINT I WAS LOW, OVER A NOISE SENSITIVE AREA. I WANTED TO CLEAR OUT OF ANY OTHER BASE TFC. MADE RADIO CALLS STATING I WAS LEAVING THE PATTERN.

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.