Narrative:

On mar/thu/02, I was taxiing back on an inactive runway (runway 16R) at lgb airport, and I inadvertently taxied across an active runway 25L, causing a runway incursion. The tower called me and had me contact them. This took place at approximately XA15. I was taxiing south on runway 16R, right of the inactive runway centerline as instructed by ground control 133.0. The instruction from ground, after I had finished a practice approach and had landed on runway 30, was to taxi straight ahead (west) at taxiway G, then turn left on the inactive runway, and taxi to cross runway 25L. I read back the instructions from ground to 'taxi straight ahead, left turn on the inactive runway (which was runway 16R), and taxi to runway 25L' and I presume to 'hold at runway 25L.' but I did not hold. Somehow I do not recall that part of the taxi instruction. When I encroached upon the active runway 25L, I remember there was an aircraft on final for runway 25L, about or at least 1/2 mi to my left. There was no collision possibility in my opinion, and no aircraft had to go around. The aircraft on final to runway 25L was a long way from me. I do not know why the ground controller had me taxi on runway 16R (inactive), and not on taxiway B, which would be safer, in my opinion. There are no yellow hold short markings or red and white signage to alert a pilot when he comes to the intersecting runway. This does not excuse me, but I think it was a factor why I crossed runway 25L. Also, during this time, there was ground traffic on ground and I was trying to be careful, and watch for them. The ground controller had me keep to the right of the inactive runway centerline, but I do not recall why. I thought that to be odd. There were no aircraft on runway 16R inactive, except me. When I crossed runway 25L (about 1/2 way), the tower (ground) told me of my error, and I immediately admitted my mistake. There was another cessna on taxiway F, going east, but he was no factor for me. In retrospect: I have learned to read back all instructions better, and follow lahso closer. I think that aircraft should taxi on txwys if at all possible, to avoid the possibility of incursions from happening. In the situation I was in, I was at fault, but I don't think I would have taxied onto runway 25L if I had been on taxiway B. I have discussed this incursion with other pilots and my flight instructor. It was a painful, but valuable lesson to learn.

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Original NASA ASRS Text

Title: C152 PLT HAD A RWY INCURSION AT LGB.

Narrative: ON MAR/THU/02, I WAS TAXIING BACK ON AN INACTIVE RWY (RWY 16R) AT LGB ARPT, AND I INADVERTENTLY TAXIED ACROSS AN ACTIVE RWY 25L, CAUSING A RWY INCURSION. THE TWR CALLED ME AND HAD ME CONTACT THEM. THIS TOOK PLACE AT APPROX XA15. I WAS TAXIING S ON RWY 16R, R OF THE INACTIVE RWY CTRLINE AS INSTRUCTED BY GND CTL 133.0. THE INSTRUCTION FROM GND, AFTER I HAD FINISHED A PRACTICE APCH AND HAD LANDED ON RWY 30, WAS TO TAXI STRAIGHT AHEAD (W) AT TXWY G, THEN TURN L ON THE INACTIVE RWY, AND TAXI TO CROSS RWY 25L. I READ BACK THE INSTRUCTIONS FROM GND TO 'TAXI STRAIGHT AHEAD, L TURN ON THE INACTIVE RWY (WHICH WAS RWY 16R), AND TAXI TO RWY 25L' AND I PRESUME TO 'HOLD AT RWY 25L.' BUT I DID NOT HOLD. SOMEHOW I DO NOT RECALL THAT PART OF THE TAXI INSTRUCTION. WHEN I ENCROACHED UPON THE ACTIVE RWY 25L, I REMEMBER THERE WAS AN ACFT ON FINAL FOR RWY 25L, ABOUT OR AT LEAST 1/2 MI TO MY L. THERE WAS NO COLLISION POSSIBILITY IN MY OPINION, AND NO ACFT HAD TO GO AROUND. THE ACFT ON FINAL TO RWY 25L WAS A LONG WAY FROM ME. I DO NOT KNOW WHY THE GND CTLR HAD ME TAXI ON RWY 16R (INACTIVE), AND NOT ON TXWY B, WHICH WOULD BE SAFER, IN MY OPINION. THERE ARE NO YELLOW HOLD SHORT MARKINGS OR RED AND WHITE SIGNAGE TO ALERT A PLT WHEN HE COMES TO THE INTERSECTING RWY. THIS DOES NOT EXCUSE ME, BUT I THINK IT WAS A FACTOR WHY I CROSSED RWY 25L. ALSO, DURING THIS TIME, THERE WAS GND TFC ON GND AND I WAS TRYING TO BE CAREFUL, AND WATCH FOR THEM. THE GND CTLR HAD ME KEEP TO THE R OF THE INACTIVE RWY CTRLINE, BUT I DO NOT RECALL WHY. I THOUGHT THAT TO BE ODD. THERE WERE NO ACFT ON RWY 16R INACTIVE, EXCEPT ME. WHEN I CROSSED RWY 25L (ABOUT 1/2 WAY), THE TWR (GND) TOLD ME OF MY ERROR, AND I IMMEDIATELY ADMITTED MY MISTAKE. THERE WAS ANOTHER CESSNA ON TXWY F, GOING E, BUT HE WAS NO FACTOR FOR ME. IN RETROSPECT: I HAVE LEARNED TO READ BACK ALL INSTRUCTIONS BETTER, AND FOLLOW LAHSO CLOSER. I THINK THAT ACFT SHOULD TAXI ON TXWYS IF AT ALL POSSIBLE, TO AVOID THE POSSIBILITY OF INCURSIONS FROM HAPPENING. IN THE SIT I WAS IN, I WAS AT FAULT, BUT I DON'T THINK I WOULD HAVE TAXIED ONTO RWY 25L IF I HAD BEEN ON TXWY B. I HAVE DISCUSSED THIS INCURSION WITH OTHER PLTS AND MY FLT INSTRUCTOR. IT WAS A PAINFUL, BUT VALUABLE LESSON TO LEARN.

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.