B737 flight crew given takeoff clearance in IMC. C210C pilot has runway incursion and is in the path of the B737. When the B737 flight crew see it, they rotate rapidly and at a speed below vr. B737 flight crew estimates they passed 20-100 ft over the C210C.

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Attributes
ACN	402052
Time
Date	199805
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : phl
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-500
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : takeoff
Flight Plan	IFR
Aircraft 2
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C, 210D
Operating Under FAR Part	Part 91
Flight Phase	ground other : taxi
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	other other : other pilot : flight engineer pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 180 flight time total : 3000 flight time type : 1000
ASRS Report	402052
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 15000 flight time type : 1000
ASRS Report	402049
Events
Anomaly	conflict : ground critical non adherence : far non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	other
Miss Distance	horizontal : 0 vertical : 20
Supplementary
Primary Problem	ATC Human Performance

Narrative:

We as flight XXX were cleared for takeoff from runway 9L at phl airport. As we started our takeoff run, everything seemed quite normal until we approached rotation speed. I noticed that a C172 (I think) was on our runway taxiing in at a southeast direction. So I rotated at a quicker rate than normal and veered slightly right to miss the cessna. We missed the cessna and the captain notified the control tower that there was an airplane on our runway. The tower seemed as surprised as we were to this fact. Contributing factors to this event were the reduced visibility and the custard yellow and white paint scheme of the cessna. And also the cessna pilot's incursion onto an active runway.

Original NASA ASRS Text

Title: B737 FLC GIVEN TKOF CLRNC IN IMC. C210C PLT HAS RWY INCURSION AND IS IN THE PATH OF THE B737. WHEN THE B737 FLC SEE IT, THEY ROTATE RAPIDLY AND AT A SPD BELOW VR. B737 FLC ESTIMATES THEY PASSED 20-100 FT OVER THE C210C.

Narrative: WE AS FLT XXX WERE CLRED FOR TKOF FROM RWY 9L AT PHL ARPT. AS WE STARTED OUR TKOF RUN, EVERYTHING SEEMED QUITE NORMAL UNTIL WE APCHED ROTATION SPD. I NOTICED THAT A C172 (I THINK) WAS ON OUR RWY TAXIING IN AT A SE DIRECTION. SO I ROTATED AT A QUICKER RATE THAN NORMAL AND VEERED SLIGHTLY R TO MISS THE CESSNA. WE MISSED THE CESSNA AND THE CAPT NOTIFIED THE CTL TWR THAT THERE WAS AN AIRPLANE ON OUR RWY. THE TWR SEEMED AS SURPRISED AS WE WERE TO THIS FACT. CONTRIBUTING FACTORS TO THIS EVENT WERE THE REDUCED VISIBILITY AND THE CUSTARD YELLOW AND WHITE PAINT SCHEME OF THE CESSNA. AND ALSO THE CESSNA PLT'S INCURSION ONTO AN ACTIVE RWY.

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.