A B737 crew, taxiing for takeoff at lax, taxied past a hold short line.

Attributes
ACN	537189
Time
Date	200202
Day	Mon
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : lax.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 150
ASRS Report	537189
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 7500 flight time type : 2759
ASRS Report	537193
Events
Anomaly	incursion : taxiway non adherence : published procedure non adherence : far non adherence other other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Flight Crew Human Performance Airport
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After pushback we were cleared to txwys D, south, and B to runway 25R. After passing 'chkpoint 2' we were reclred to txwys south, and B to runway 25R. On taxiway B there were steel plates, if you taxied slower you could drive around most of them. This is what I was doing. It was dark and the taxi light did not illuminate them very well. After we passed taxiway F, tower asked us why we did not hold short of taxiway F. We told him we were not instructed to. He told us that we were not instructed to by him, but there was a sign there. We asked him what he wanted us to do and he cleared us into position and hold. It is not standard procedure for us to go to runway 25R. Before we pushed I thought we would be given runway 25R at that time of the morning. I looked at the airport diagram and thought I read the signs as we were taxiing. I must have issued at least one. Supplemental information from acn 537193: I changed to tower frequency approaching taxiway F. Shortly thereafter, tower asked us why we didn't stop at taxiway F. Neither the captain nor myself heard any instructions to do so. Tower said there was a sign on the taxiway. We did not see that either (nighttime).

Original NASA ASRS Text

Title: A B737 CREW, TAXIING FOR TKOF AT LAX, TAXIED PAST A HOLD SHORT LINE.

Narrative: AFTER PUSHBACK WE WERE CLRED TO TXWYS D, S, AND B TO RWY 25R. AFTER PASSING 'CHKPOINT 2' WE WERE RECLRED TO TXWYS S, AND B TO RWY 25R. ON TXWY B THERE WERE STEEL PLATES, IF YOU TAXIED SLOWER YOU COULD DRIVE AROUND MOST OF THEM. THIS IS WHAT I WAS DOING. IT WAS DARK AND THE TAXI LIGHT DID NOT ILLUMINATE THEM VERY WELL. AFTER WE PASSED TXWY F, TWR ASKED US WHY WE DID NOT HOLD SHORT OF TXWY F. WE TOLD HIM WE WERE NOT INSTRUCTED TO. HE TOLD US THAT WE WERE NOT INSTRUCTED TO BY HIM, BUT THERE WAS A SIGN THERE. WE ASKED HIM WHAT HE WANTED US TO DO AND HE CLRED US INTO POS AND HOLD. IT IS NOT STANDARD PROC FOR US TO GO TO RWY 25R. BEFORE WE PUSHED I THOUGHT WE WOULD BE GIVEN RWY 25R AT THAT TIME OF THE MORNING. I LOOKED AT THE ARPT DIAGRAM AND THOUGHT I READ THE SIGNS AS WE WERE TAXIING. I MUST HAVE ISSUED AT LEAST ONE. SUPPLEMENTAL INFO FROM ACN 537193: I CHANGED TO TWR FREQ APCHING TXWY F. SHORTLY THEREAFTER, TWR ASKED US WHY WE DIDN'T STOP AT TXWY F. NEITHER THE CAPT NOR MYSELF HEARD ANY INSTRUCTIONS TO DO SO. TWR SAID THERE WAS A SIGN ON THE TXWY. WE DID NOT SEE THAT EITHER (NIGHTTIME).

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.