Narrative:

ATR42 on rollout runway 8 reported iguana on/near runway 8. Changed landing sequence to runway 10 for 3 aircraft on final approach. Iguana was reported south of intersection 'right' and visual scanning showed runway 8 clear. B737 (Z) cleared for takeoff, port authority/authorized vehicle (Y) observed proceeding inside intersection 'right' hold short line, while aircraft on takeoff roll. Ground control verified vehicle understood instructions to remain clear of runway 8. Aircraft (X) DH8C cleared for takeoff. Port authority/authorized vehicle observed to enter runway 8 at intersection 'west.' canceled takeoff clearance for DH8C. The real cause of the vehicle deviation was the language barrier, and requiring english language proficiency for airport personnel might help in the future. Supplemental information from acn 429825: vehicle was instructed to hold short (read back correct), then proceeded across hold short lines. When questioned, did not answer but exited the runway and reported clear. A dash 8 was cleared for takeoff. Vehicle observed entering the runway again, dash 8 clearance canceled. Understanding of the english language is an ongoing problem. The vehicle asked to proceed eastbound then drove back on the runway.

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Original NASA ASRS Text

Title: TWR LCL CTLR REQUIRED TO CANCEL TKOF CLRNC OF A DH8C WHEN OBSERVING AN ARPT VEHICLE DRIVE ONTO THE RWY. VEHICLE EARLIER ACKNOWLEDGED INSTRUCTION TO REMAIN OFF THE RWY FOR DEPARTING ACFT.

Narrative: ATR42 ON ROLLOUT RWY 8 RPTED IGUANA ON/NEAR RWY 8. CHANGED LNDG SEQUENCE TO RWY 10 FOR 3 ACFT ON FINAL APCH. IGUANA WAS RPTED S OF INTXN 'R' AND VISUAL SCANNING SHOWED RWY 8 CLR. B737 (Z) CLRED FOR TKOF, PORT AUTH VEHICLE (Y) OBSERVED PROCEEDING INSIDE INTXN 'R' HOLD SHORT LINE, WHILE ACFT ON TKOF ROLL. GND CTL VERIFIED VEHICLE UNDERSTOOD INSTRUCTIONS TO REMAIN CLR OF RWY 8. ACFT (X) DH8C CLRED FOR TKOF. PORT AUTH VEHICLE OBSERVED TO ENTER RWY 8 AT INTXN 'W.' CANCELED TKOF CLRNC FOR DH8C. THE REAL CAUSE OF THE VEHICLE DEV WAS THE LANGUAGE BARRIER, AND REQUIRING ENGLISH LANGUAGE PROFICIENCY FOR ARPT PERSONNEL MIGHT HELP IN THE FUTURE. SUPPLEMENTAL INFO FROM ACN 429825: VEHICLE WAS INSTRUCTED TO HOLD SHORT (READ BACK CORRECT), THEN PROCEEDED ACROSS HOLD SHORT LINES. WHEN QUESTIONED, DID NOT ANSWER BUT EXITED THE RWY AND RPTED CLR. A DASH 8 WAS CLRED FOR TKOF. VEHICLE OBSERVED ENTERING THE RWY AGAIN, DASH 8 CLRNC CANCELED. UNDERSTANDING OF THE ENGLISH LANGUAGE IS AN ONGOING PROB. THE VEHICLE ASKED TO PROCEED EBOUND THEN DROVE BACK ON THE 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.