Ground vehicles cross runway during takeoff roll. Continued takeoff uneventfully.

Attributes
ACN	440408
Time
Date	199906
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : okc.airport
State Reference	OK
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Weather Elements	Rain
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 3900 flight time type : 500
ASRS Report	440408
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground less severe ground encounters : vehicle incursion : runway non adherence : published procedure
Independent Detector	other flight crewa other flight crewb other other : flc3
Resolutory Action	none taken : anomaly accepted
Miss Distance	horizontal : 1500 vertical : 0
Supplementary
Problem Areas	ATC Human Performance Airport
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure Operational Deviation

Narrative:

We were cleared for takeoff on runway 17R at okc by tower controller. As we were accelerating for takeoff at approximately 80 KTS and 900 ft into the roll, an ambulance followed by a car crossed runway 17R at taxiway left. We took no evasive action and continued for an uneventful takeoff. We heard no communications between the tower and the ground vehicles.

Original NASA ASRS Text

Title: GND VEHICLES CROSS RWY DURING TKOF ROLL. CONTINUED TKOF UNEVENTFULLY.

Narrative: WE WERE CLRED FOR TKOF ON RWY 17R AT OKC BY TWR CTLR. AS WE WERE ACCELERATING FOR TKOF AT APPROX 80 KTS AND 900 FT INTO THE ROLL, AN AMBULANCE FOLLOWED BY A CAR CROSSED RWY 17R AT TXWY L. WE TOOK NO EVASIVE ACTION AND CONTINUED FOR AN UNEVENTFUL TKOF. WE HEARD NO COMS BTWN THE TWR AND THE GND VEHICLES.

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.