C172 private pilot experienced a non twred runway incursion at pym.

Attributes
ACN	687977
Time
Date	200602
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pym.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	ground : holding ground : taxi
Flight Plan	None
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Beechjet 400
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing : roll
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 10 flight time total : 680 flight time type : 680
ASRS Report	687977
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	incursion : runway
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 300 vertical : 300
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

At pym; a non twred airport and having completed my preflight checklist and run-up of the C172/U; I announced on the communication radio frequency 123.0 that I was taxiing into position for runway 24 straight out departure. Suddenly a voice boomed out of my head set from the pilot of a 2 engine jet beechcraft that he was on short final and I was in violation of airport procedures. I had crossed the yellow hold short line and was not on the actual runway; I looked up and saw the beechcraft approximately 300 ft above touchdown on short final. The pilot made some angry comments that I was in violation for not holding short. However; he did hear my communication that I was taking the active runway; but I never heard him announce that he was on short final. Be that as it may; I waited before taking the active runway; for the beechcraft pilot to announce that he was clear of the active runway. When I inquired of him if he was clear of the active; he angrily responded that he announced clearing; but I heard no such communication. I then announced on the communication that I was taking the active runway 24 for straight-out departure and then northwest to ZZZ. The flight was uneventful and I forgot about the incident at plymouth. This incident has taught me that at non twred airports not to rely only on radio communication but also before crossing the hold short line turn the aircraft; especially high wing; into the descending approach pattern for better viewing of landing aircraft.

Original NASA ASRS Text

Title: C172 PVT PLT EXPERIENCED A NON TWRED RWY INCURSION AT PYM.

Narrative: AT PYM; A NON TWRED ARPT AND HAVING COMPLETED MY PREFLT CHKLIST AND RUN-UP OF THE C172/U; I ANNOUNCED ON THE COM RADIO FREQ 123.0 THAT I WAS TAXIING INTO POS FOR RWY 24 STRAIGHT OUT DEP. SUDDENLY A VOICE BOOMED OUT OF MY HEAD SET FROM THE PLT OF A 2 ENG JET BEECHCRAFT THAT HE WAS ON SHORT FINAL AND I WAS IN VIOLATION OF ARPT PROCS. I HAD CROSSED THE YELLOW HOLD SHORT LINE AND WAS NOT ON THE ACTUAL RWY; I LOOKED UP AND SAW THE BEECHCRAFT APPROX 300 FT ABOVE TOUCHDOWN ON SHORT FINAL. THE PLT MADE SOME ANGRY COMMENTS THAT I WAS IN VIOLATION FOR NOT HOLDING SHORT. HOWEVER; HE DID HEAR MY COM THAT I WAS TAKING THE ACTIVE RWY; BUT I NEVER HEARD HIM ANNOUNCE THAT HE WAS ON SHORT FINAL. BE THAT AS IT MAY; I WAITED BEFORE TAKING THE ACTIVE RWY; FOR THE BEECHCRAFT PLT TO ANNOUNCE THAT HE WAS CLR OF THE ACTIVE RWY. WHEN I INQUIRED OF HIM IF HE WAS CLR OF THE ACTIVE; HE ANGRILY RESPONDED THAT HE ANNOUNCED CLRING; BUT I HEARD NO SUCH COM. I THEN ANNOUNCED ON THE COM THAT I WAS TAKING THE ACTIVE RWY 24 FOR STRAIGHT-OUT DEP AND THEN NW TO ZZZ. THE FLT WAS UNEVENTFUL AND I FORGOT ABOUT THE INCIDENT AT PLYMOUTH. THIS INCIDENT HAS TAUGHT ME THAT AT NON TWRED ARPTS NOT TO RELY ONLY ON RADIO COM BUT ALSO BEFORE XING THE HOLD SHORT LINE TURN THE ACFT; ESPECIALLY HIGH WING; INTO THE DSNDING APCH PATTERN FOR BETTER VIEWING OF LNDG ACFT.

Data retrieved from NASA's ASRS site as of January 2009 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.