Near midair collision.

Attributes
ACN	157928
Time
Date	199009
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : phl
State Reference	PA
Altitude	msl bound lower : 8500 msl bound upper : 8800
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : phl tower : bwi
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Flight Plan	None
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Widebody Transport
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 90 flight time total : 5000 flight time type : 2500
ASRS Report	157928
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Pilot Deviation

Narrative:

Working phl departure off phl VFR to fay, I saw lights of airliner off left front and lower on converging paths. Saw we would be very close and climbed rapidly to 8800'. Heavy jet passed directly underneath. They complained to ATC that they were cleared to 14000' and nearly hit us. They were advised of our presence, and we were advised of their's, but told they were level at 8000', which I don't believe they were. I think that ATC could have issued vectors.

Original NASA ASRS Text

Title: NMAC.

Narrative: WORKING PHL DEP OFF PHL VFR TO FAY, I SAW LIGHTS OF AIRLINER OFF LEFT FRONT AND LOWER ON CONVERGING PATHS. SAW WE WOULD BE VERY CLOSE AND CLBED RAPIDLY TO 8800'. HVY JET PASSED DIRECTLY UNDERNEATH. THEY COMPLAINED TO ATC THAT THEY WERE CLRED TO 14000' AND NEARLY HIT US. THEY WERE ADVISED OF OUR PRESENCE, AND WE WERE ADVISED OF THEIR'S, BUT TOLD THEY WERE LEVEL AT 8000', WHICH I DON'T BELIEVE THEY WERE. I THINK THAT ATC COULD HAVE ISSUED VECTORS.

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.