Narrative:

For 6 yrs, when taxiing from our ramps to runway 29 at sfe the only way to get there was to taxi across 29 and turn right on taxiway 'C'. We were stopped behind 2 widebody transport aircraft. All of us waiting to cross the runway. The wdbs were cleared to cross, and my copilot called ground to see if they wanted us to follow the wdbs across the runway. The answer was 'yes, follow widebody transport type turn right on M and taxi to runway 29.' after crossing the runway, ground called and informed us that M was the new taxiway on the other side of the runway and had been open 3 weeks! (Sure enough, a nice shiny new taxiway that we were supposed to be on). I had known that there was construction of new taxiways and runways underway, but no information about them being open was available (I checked). I have no idea how to stop this type of incursion. I was so involved in 'follow widebody transport turn right,' which I was used to, that I missed 'on taxiway M.' that made no sense (until a min later). Callback conversation with reporter revealed the following information. Reporter says that new airport diagram showing taxiway M appeared in commercial charts in second week of 2/92. Before incident they had received no information on opening of taxiway. Flight manager in cockpit heard clearance to runway 29 and jumped out of seat to check with so on legality of using that runway. This was at same time that ground controller was saying 'turn right on M and taxi to runway 29.' neither PIC (PF) or first officer heard that part of clearance. Also said that about that time they were starting the 2 outboard engines and running engine start checklists. Lot of noise and distrs in cockpit.

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Original NASA ASRS Text

Title: UNAUTH RWY XING BY SUPPLEMENTAL CARRIER.

Narrative: FOR 6 YRS, WHEN TAXIING FROM OUR RAMPS TO RWY 29 AT SFE THE ONLY WAY TO GET THERE WAS TO TAXI ACROSS 29 AND TURN R ON TAXIWAY 'C'. WE WERE STOPPED BEHIND 2 WDB ACFT. ALL OF US WAITING TO CROSS THE RWY. THE WDBS WERE CLRED TO CROSS, AND MY COPLT CALLED GND TO SEE IF THEY WANTED US TO FOLLOW THE WDBS ACROSS THE RWY. THE ANSWER WAS 'YES, FOLLOW WDB TYPE TURN R ON M AND TAXI TO RWY 29.' AFTER XING THE RWY, GND CALLED AND INFORMED US THAT M WAS THE NEW TAXIWAY ON THE OTHER SIDE OF THE RWY AND HAD BEEN OPEN 3 WKS! (SURE ENOUGH, A NICE SHINY NEW TAXIWAY THAT WE WERE SUPPOSED TO BE ON). I HAD KNOWN THAT THERE WAS CONSTRUCTION OF NEW TAXIWAYS AND RWYS UNDERWAY, BUT NO INFO ABOUT THEM BEING OPEN WAS AVAILABLE (I CHKED). I HAVE NO IDEA HOW TO STOP THIS TYPE OF INCURSION. I WAS SO INVOLVED IN 'FOLLOW WDB TURN R,' WHICH I WAS USED TO, THAT I MISSED 'ON TAXIWAY M.' THAT MADE NO SENSE (UNTIL A MIN LATER). CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. RPTR SAYS THAT NEW ARPT DIAGRAM SHOWING TAXIWAY M APPEARED IN COMMERCIAL CHARTS IN SECOND WK OF 2/92. BEFORE INCIDENT THEY HAD RECEIVED NO INFO ON OPENING OF TAXIWAY. FLT MGR IN COCKPIT HEARD CLRNC TO RWY 29 AND JUMPED OUT OF SEAT TO CHK WITH SO ON LEGALITY OF USING THAT RWY. THIS WAS AT SAME TIME THAT GND CTLR WAS SAYING 'TURN R ON M AND TAXI TO RWY 29.' NEITHER PIC (PF) OR FO HEARD THAT PART OF CLRNC. ALSO SAID THAT ABOUT THAT TIME THEY WERE STARTING THE 2 OUTBOARD ENGS AND RUNNING ENG START CHKLISTS. LOT OF NOISE AND DISTRS IN COCKPIT.

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.