A corporate flight crew became distracted when sfo issued a new SID and departure runway while taxii...

Narrative:

We were cleared to line up and hold on runway 1R at sfo (a to A1) and in same call; tower told us 'I have a reroute for you'; I replied; 'roger; aircraft X cleared to line up and wait; and did you say you have a reroute?'; tower replied; 'yes please advise when ready to copy.' I told pilot flying (PF) (the captain/PIC) that 'I am heads down'; then told tower; 'ready to copy.' the PF taxied to line up and wait while I remained heads down and copied the reroute; which was a new SID. So I remained heads down and reprogramed the FMS with the new SID. As soon as I completed and reviewed the SID (chart to FMS confirmed); I asked the PF if he was ready; and he replied 'yes'; so I told tower 'aircraft X is ready to takeoff.' tower then cleared us for takeoff runway 1R. As the PIC started to add power; he said 'what the;' and I looked up (from monitoring the cockpit cas messages; parameters; airspeed; heading; etc per SOP) and saw that we were on taxiway left. The PIC immediately reduced power; I do not believe we even accelerated above 40 knots; and he taxied ahead to taxiway G and stopped. I advised tower that we were on G; and requested to taxi back for takeoff. Tower cleared us to back taxi on the runway and to line up and wait. The flight was then completed without any issues.this was caused because of the late change in our reroute. I do not believe that ATC should ever issued a new clearance when also clearing an aircraft to line up and wait. We should have been given the new clearance while holding short of the runway. If that had happened; we could have both worked on the new clearance while stopped with the park brake set. Then when clearance was reviewed and read back; we could have then been cleared to line up and wait; or cleared for take off. This way both crew members could have been looking outside during aircraft movement.

Original NASA ASRS Text

Title: A Corporate flight crew became distracted when SFO issued a new SID and departure runway while taxiing at night. Thinking that Taxiway L was Runway 1R; the takeoff was begun. The Captain detected the error and rejected the takeoff.

Narrative: We were cleared to line up and hold on Runway 1R at SFO (A to A1) and in same call; Tower told us 'I have a reroute for you'; I replied; 'roger; Aircraft X cleared to line up and wait; and did you say you have a reroute?'; Tower replied; 'yes please advise when ready to copy.' I told Pilot Flying (PF) (the captain/PIC) that 'I am heads down'; then told tower; 'ready to copy.' The PF taxied to line up and wait while I remained heads down and copied the reroute; which was a new SID. So I remained heads down and reprogramed the FMS with the new SID. As soon as I completed and reviewed the SID (chart to FMS confirmed); I asked the PF if he was ready; and he replied 'yes'; so I told tower 'Aircraft X is ready to takeoff.' Tower then cleared us for takeoff Runway 1R. As the PIC started to add power; he said 'what the;' and I looked up (from monitoring the cockpit CAS messages; parameters; airspeed; heading; etc per SOP) and saw that we were on Taxiway L. The PIC immediately reduced power; I do not believe we even accelerated above 40 knots; and he taxied ahead to Taxiway G and stopped. I advised Tower that we were on G; and requested to taxi back for takeoff. Tower cleared us to back taxi on the runway and to line up and wait. The flight was then completed without any issues.This was caused because of the late change in our reroute. I do not believe that ATC should ever issued a new clearance when also clearing an aircraft to line up and wait. We should have been given the new clearance while holding short of the runway. If that had happened; we could have both worked on the new clearance while stopped with the park brake set. Then when clearance was reviewed and read back; we could have then been cleared to line up and wait; or cleared for take off. This way both crew members could have been looking outside during aircraft movement.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1246932
Time
Date	201503
Local Time Of Day	1801-2400
Place
Locale Reference	SFO.Tower
State Reference	CA
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 20 Flight Crew Total 13500 Flight Crew Type 2900
Person 2
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Engineer Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 56 Flight Crew Total 12700 Flight Crew Type 3400
Events
Anomaly	ATC Issue All Types Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Other / Unknown Ground Incursion Taxiway

A corporate flight crew became distracted when sfo issued a new SID and departure runway while taxiing at night. Thinking that taxiway left was runway 1R; the takeoff was begun. The captain detected the error and rejected the takeoff.