ACR X NON ADHERENCE TO ATC CLRNC UNAUTH RWY ENTRY. RWY INCURSION.

Narrative

WE WERE CLRED TO TAXI BY PHOENIX GND CTL E ON TXWY D BEHIND COMPANY. GND SPECIFICALLY SAID OUR DEP ORDER WAS BEHIND OUR COMPANY ACFT (THIS MADE US #5 FOR TKOF). AFTER OUR COMPANY ACFT WAS CLRED FOR TKOF WE TAXIED UP TO AND HELD SHORT OF THE RWY 26L. AT THAT TIME 2 SMALLER AIRPLANES PULLED UP TO OUR R SIDE WAITING FOR TKOF. TWR CLRED THE FIRST ONE AND THE SECOND ONE FOR TKOF. BOTH HAD TO TAXI BEHIND US AND AROUND OUR L SIDE TO GET ON THE RWY. THE TWR CTLR KNEW WE WERE AT THE #1 POS BECAUSE SHE DISCUSSED WITH THE OTHER ACFT WHETHER THEY COULD GET AROUND US OR NOT; HOWEVER; SHE APPARENTLY DIDN'T KNOW WHO WE WERE; AND SHE DIDN'T BOTHER TO ASK. WE THEN THOUGHT THAT WE HAD BEEN CLRED 'ON TO HOLD' BY TWR. WE CLRLY READ BACK 'ACR X CLRED ON TO HOLD.' TWR DID NOT RESPOND BACK; AND WE TAXIED INTO POS. ACR Y THEN CALLED THAT THEY WERE #2 FOR TKOF. NO RESPONSE FROM TWR. TWR THEN CLRED ACR Y FOR TKOF. WE RESPONDED THAT WE WERE ACR X IN POS FOR TKOF. TWR RESPONDED 'WHO ARE YOU? I DON'T HAVE ANYTHING ON YOU.' SHE THEN SAID 'STANDBY;' AND ASKED US OUR DEST. THEN SHE SAID 'WE LOST YOUR STRIP; NOW WE HAVE IT; YOU'RE CLRED FOR TKOF; AND GIVE US A CALL WHEN YOU GET TO ONTARIO.' AFTER ARR IN ONTARIO I CALLED THE TWR SUPVR IN PHOENIX. HE SAID THAT ACR Y WAS CLRED ONTO THE RWY; NOT ACR X. HE ALSO SAID THAT THEY HAD BEEN HAVING A PROB IN PHOENIX WITH PLTS TAXIING WITHOUT CLRNC AND THE WRONG PEOPLE TAKING THE RWY; WITH SOMEBODY ELSE'S CLRNC. HE COMMENTED THAT HIS GND CTLR DOESN'T REMEMBER GIVING US TAXI CLRNC (WE'RE CERTAIN HE DID) (THAT'S WHY OUR STRIP WASN'T PASSED ALONG). WHEN WE CALLED FOR TAXI HE WAS BUSY AND QUITE POSSIBLY FORGOT TO PASS THE STRIP. MAYBE THE PROB OF SHOWING UP AT #1 ISN'T THE PLTS; BUT GND CTL.