Air carrier medium large transport unauthorized runway entry.

Attributes
ACN	148235
Time
Date	199006
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : stl
State Reference	MO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : holding ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 200
ASRS Report	148235
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 240 flight time total : 12700 flight time type : 7800
ASRS Report	148584
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Our flight, air carrier xx, after being cleared to cross runway 12R, was informed that we were to follow another company medium large transport for takeoff on 12L. The medium large transport that we were to follow was #2 for takeoff on runway 12L, making us #3 for takeoff. With the medium large transport ahead of us on the roll for takeoff we, flight XXX, answered the tower by stating that 'company XXX position and hold.' after checking for landing traffic, we went into position, only to be informed we were not cleared into the runway. We simply turned to the left and taxied clear. No dangerous evasive action was required. Looking back, I believe the position and hold clearance was meant for a company commuter that was parallel to our taxiway on runway 06. I am not sure if the controller used our call sign or not, but we were set to follow the medium large transport in front of us because we were told our sequence was behind the company medium large transport. Supplemental information from acn 148584: if the problem wasn't that the controller had cleared us when he meant someone else the only other explanation we could figure was that since we were responding to each other's commands in response to the checklist we did not hear the call sign correctly and responded to someone else's clearance.

Original NASA ASRS Text

Title: ACR MLG UNAUTH RWY ENTRY.

Narrative: OUR FLT, ACR XX, AFTER BEING CLRED TO CROSS RWY 12R, WAS INFORMED THAT WE WERE TO FOLLOW ANOTHER COMPANY MLG FOR TKOF ON 12L. THE MLG THAT WE WERE TO FOLLOW WAS #2 FOR TKOF ON RWY 12L, MAKING US #3 FOR TKOF. WITH THE MLG AHEAD OF US ON THE ROLL FOR TKOF WE, FLT XXX, ANSWERED THE TWR BY STATING THAT 'COMPANY XXX POS AND HOLD.' AFTER CHKING FOR LNDG TFC, WE WENT INTO POS, ONLY TO BE INFORMED WE WERE NOT CLRED INTO THE RWY. WE SIMPLY TURNED TO THE LEFT AND TAXIED CLR. NO DANGEROUS EVASIVE ACTION WAS REQUIRED. LOOKING BACK, I BELIEVE THE POS AND HOLD CLRNC WAS MEANT FOR A COMPANY COMMUTER THAT WAS PARALLEL TO OUR TXWY ON RWY 06. I AM NOT SURE IF THE CTLR USED OUR CALL SIGN OR NOT, BUT WE WERE SET TO FOLLOW THE MLG IN FRONT OF US BECAUSE WE WERE TOLD OUR SEQUENCE WAS BEHIND THE COMPANY MLG. SUPPLEMENTAL INFO FROM ACN 148584: IF THE PROB WASN'T THAT THE CTLR HAD CLRED US WHEN HE MEANT SOMEONE ELSE THE ONLY OTHER EXPLANATION WE COULD FIGURE WAS THAT SINCE WE WERE RESPONDING TO EACH OTHER'S COMMANDS IN RESPONSE TO THE CHKLIST WE DID NOT HEAR THE CALL SIGN CORRECTLY AND RESPONDED TO SOMEONE ELSE'S CLRNC.

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.