Difference of opinion as to clearance to cross runway at lax.

Attributes
ACN	455952
Time
Date	199911
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lax.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : lax.tower
Operator	common carrier : air carrier
Make Model Name	MD-82
Operating Under FAR Part	Part 129
Flight Phase	ground : taxi
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : lax.tower
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : takeoff ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : atp
Experience	flight time last 90 days : 188 flight time total : 15064
ASRS Report	455952
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	conflict : ground critical incursion : runway non adherence : clearance non adherence other other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : took precautionary avoidance action
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I would like to inform you of the facts that occurred at lax airport. After we landed on runway 25L at lax, the tower controller instructed us during the landing to clear the runway 25L via taxiway north and cross runway 25R and remain on tower frequency. These instructions were read back by the first officer without receiving further communications from the tower controller. While being at taxiway north and after the runway 25R was cleared, we started crossing according to the instructions and at the middle of the runway 25R, the tower controller then gave us the instruction to hold short of runway 25R. We couldn't comply with the instruction because the airplane was in the middle of the runway, as we mentioned before. That's why we expedited crossing the runway. At that moment we saw above us an aircraft, apparently a B757. Later the tower controller said that the instruction was to hold short of the runway and remain on frequency. The first officer told them that he read back the instructions to clear the runway 25L via taxiway north and cross runway 25R remaining on tower control frequency. After that, the tower controller instructed us to change the frequency and they gave us a phone number to contact them.

Original NASA ASRS Text

Title: DIFFERENCE OF OPINION AS TO CLRNC TO CROSS RWY AT LAX.

Narrative: I WOULD LIKE TO INFORM YOU OF THE FACTS THAT OCCURRED AT LAX ARPT. AFTER WE LANDED ON RWY 25L AT LAX, THE TWR CTLR INSTRUCTED US DURING THE LNDG TO CLR THE RWY 25L VIA TXWY N AND CROSS RWY 25R AND REMAIN ON TWR FREQ. THESE INSTRUCTIONS WERE READ BACK BY THE FO WITHOUT RECEIVING FURTHER COMS FROM THE TWR CTLR. WHILE BEING AT TXWY N AND AFTER THE RWY 25R WAS CLRED, WE STARTED XING ACCORDING TO THE INSTRUCTIONS AND AT THE MIDDLE OF THE RWY 25R, THE TWR CTLR THEN GAVE US THE INSTRUCTION TO HOLD SHORT OF RWY 25R. WE COULDN'T COMPLY WITH THE INSTRUCTION BECAUSE THE AIRPLANE WAS IN THE MIDDLE OF THE RWY, AS WE MENTIONED BEFORE. THAT'S WHY WE EXPEDITED XING THE RWY. AT THAT MOMENT WE SAW ABOVE US AN ACFT, APPARENTLY A B757. LATER THE TWR CTLR SAID THAT THE INSTRUCTION WAS TO HOLD SHORT OF THE RWY AND REMAIN ON FREQ. THE FO TOLD THEM THAT HE READ BACK THE INSTRUCTIONS TO CLR THE RWY 25L VIA TXWY N AND CROSS RWY 25R REMAINING ON TWR CTL FREQ. AFTER THAT, THE TWR CTLR INSTRUCTED US TO CHANGE THE FREQ AND THEY GAVE US A PHONE NUMBER TO CONTACT THEM.

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.