An HS125 flight crew notice a C150 fly overhead as they crossed the intersection on landing.

Attributes
ACN	588176
Time
Date	200307
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : psf.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	BAe 125 Series 800
Operating Under FAR Part	Part 91
Navigation In Use	ils localizer only : 26
Flight Phase	descent : approach landing : roll
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 2500
ASRS Report	588176
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	conflict : ground critical incursion : runway
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Airport Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Did full procedure IFR approach with procedure turn to localizer runway 26 excellent WX severe clear on sat afternoon. Had new pilot wanted to practice the IFR procedure. Came straight in, called inside the marker on unicom for runway 26. Saw jet traffic taxiing and announcing departure from runway 26. On rollout saw C150 fly overhead as we crossed intersection of runways 26/32. Never heard other aircraft on unicom frequency. Geographical features of airport and mix of many kinds of traffic. Differing speeds, etc, intersecting runways and non-twred airport contributed to incidence. Also weekend and great WX, when all 'weekend warriors' are out. Recommendations: can't be too careful when this situation presents itself. Special emphasis on use of radio technique and cautionary notes on the operations at airport. Also some fields, though generally not that busy could use a part time tower on clear weekend days only. Example, what happened at boca raton, fl. Refer to copy of commercial airport diagram.

Original NASA ASRS Text

Title: AN HS125 FLT CREW NOTICE A C150 FLY OVERHEAD AS THEY CROSSED THE INTXN ON LNDG.

Narrative: DID FULL PROC IFR APCH WITH PROC TURN TO LOC RWY 26 EXCELLENT WX SEVERE CLR ON SAT AFTERNOON. HAD NEW PLT WANTED TO PRACTICE THE IFR PROC. CAME STRAIGHT IN, CALLED INSIDE THE MARKER ON UNICOM FOR RWY 26. SAW JET TFC TAXIING AND ANNOUNCING DEP FROM RWY 26. ON ROLLOUT SAW C150 FLY OVERHEAD AS WE CROSSED INTXN OF RWYS 26/32. NEVER HEARD OTHER ACFT ON UNICOM FREQ. GEOGRAPHICAL FEATURES OF ARPT AND MIX OF MANY KINDS OF TFC. DIFFERING SPDS, ETC, INTERSECTING RWYS AND NON-TWRED ARPT CONTRIBUTED TO INCIDENCE. ALSO WEEKEND AND GREAT WX, WHEN ALL 'WEEKEND WARRIORS' ARE OUT. RECOMMENDATIONS: CAN'T BE TOO CAREFUL WHEN THIS SIT PRESENTS ITSELF. SPECIAL EMPHASIS ON USE OF RADIO TECHNIQUE AND CAUTIONARY NOTES ON THE OPS AT ARPT. ALSO SOME FIELDS, THOUGH GENERALLY NOT THAT BUSY COULD USE A PART TIME TWR ON CLR WEEKEND DAYS ONLY. EXAMPLE, WHAT HAPPENED AT BOCA RATON, FL. REFER TO COPY OF COMMERCIAL ARPT DIAGRAM.

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.