A C210 student with a CFI taxi across runways 25L and right at lax without a clearance.

Attributes
ACN	625969
Time
Date	200407
Day	Mon
Place
Locale Reference	airport : lax.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Operator	general aviation : personal
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C, 210D
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : private
Experience	flight time last 90 days : 75 flight time total : 400 flight time type : 225
ASRS Report	625969
Person 2
Affiliation	other
Function	instruction : instructor oversight : pic
Qualification	pilot : atp pilot : cfi pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 90 flight time total : 9000 flight time type : 300
ASRS Report	624962
Events
Anomaly	incursion : runway non adherence : far non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

This was an IFR training flight for me to lax with my instructor because it was an opportunity for IFR training and I did not want to fly into lax by myself as I had never flown into lax. Upon landing I contacted ground after leaving the runway and we were given a series of directions to the FBO. We had wanted to go to XXX FBO and asked if we should go to ZZZ FBO since it was closer. I was taxiing and my CFI was reading the airport diagram. We believed we were following the txwys as instructed, txwys east, south, C, T. At taxiway T we turned left and crossed taxiway B and we were confused as to the location of the ZZZ FBO, we paused at runway 25R looking down the runway and we assumed that we were ok to cross and continued across runways 25R and 25L on taxiway T. We proceeded left onto taxiway a and I asked the ground controller for directions as I believed I was in the wrong place. He verified that we had crossed runways 25R and 25L and gave us a telephone number to call and directed us to XXX FBO. I should have asked the ground controller if we were indeed cleared to cross the runways before crossing.

Original NASA ASRS Text

Title: A C210 STUDENT WITH A CFI TAXI ACROSS RWYS 25L AND R AT LAX WITHOUT A CLRNC.

Narrative: THIS WAS AN IFR TRAINING FLT FOR ME TO LAX WITH MY INSTRUCTOR BECAUSE IT WAS AN OPPORTUNITY FOR IFR TRAINING AND I DID NOT WANT TO FLY INTO LAX BY MYSELF AS I HAD NEVER FLOWN INTO LAX. UPON LNDG I CONTACTED GND AFTER LEAVING THE RWY AND WE WERE GIVEN A SERIES OF DIRECTIONS TO THE FBO. WE HAD WANTED TO GO TO XXX FBO AND ASKED IF WE SHOULD GO TO ZZZ FBO SINCE IT WAS CLOSER. I WAS TAXIING AND MY CFI WAS READING THE ARPT DIAGRAM. WE BELIEVED WE WERE FOLLOWING THE TXWYS AS INSTRUCTED, TXWYS E, S, C, T. AT TXWY T WE TURNED L AND CROSSED TXWY B AND WE WERE CONFUSED AS TO THE LOCATION OF THE ZZZ FBO, WE PAUSED AT RWY 25R LOOKING DOWN THE RWY AND WE ASSUMED THAT WE WERE OK TO CROSS AND CONTINUED ACROSS RWYS 25R AND 25L ON TXWY T. WE PROCEEDED L ONTO TXWY A AND I ASKED THE GND CTLR FOR DIRECTIONS AS I BELIEVED I WAS IN THE WRONG PLACE. HE VERIFIED THAT WE HAD CROSSED RWYS 25R AND 25L AND GAVE US A TELEPHONE NUMBER TO CALL AND DIRECTED US TO XXX FBO. I SHOULD HAVE ASKED THE GND CTLR IF WE WERE INDEED CLRED TO CROSS THE RWYS BEFORE XING.

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.