Corp aircraft taxis onto runway to go to active without clearance.

Attributes
ACN	201365
Time
Date	199202
Day	Wed
Local Time Of Day	1201 To 1800
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	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 100 flight time total : 7800 flight time type : 150
ASRS Report	201365
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

The incident occurred during taxi to runway 12L. Clearance from the general aviation ramp was 'taxi to runway 12 via runway 13.' while approaching taxiway 'C' on runway 13 the aircraft I was taxiing was told to contact tower. Tower gave unrequested 'taxi into position and hold' clearance. I was past taxiway 'C' so came around the end of runway 13 toward 12L using runway 24 for the turn. While on 24 I was asked if I had wanted 24 and replied I requested FL220 but would take FL240 and continued taxi to 12L while the tower controller advised me runway 13 and 12L do not intersect. He then issued takeoff clearance. The problem seems to be unfamiliarity with the use of runways not in current active use as taxiways and the unspecific rules of use of runways for taxi, also saying '24' without the word runway before it makes meanings unclr. This could be avoided by a clearance 'taxi to runway 12L via runway 13 and taxiway charlie do not cross runway 24.' there was no collision or apparent hazard this time.

Original NASA ASRS Text

Title: CORP ACFT TAXIS ONTO RWY TO GO TO ACTIVE WITHOUT CLRNC.

Narrative: THE INCIDENT OCCURRED DURING TAXI TO RWY 12L. CLRNC FROM THE GENERAL AVIATION RAMP WAS 'TAXI TO RWY 12 VIA RWY 13.' WHILE APCHING TAXIWAY 'C' ON RWY 13 THE ACFT I WAS TAXIING WAS TOLD TO CONTACT TWR. TWR GAVE UNREQUESTED 'TAXI INTO POS AND HOLD' CLRNC. I WAS PAST TAXIWAY 'C' SO CAME AROUND THE END OF RWY 13 TOWARD 12L USING RWY 24 FOR THE TURN. WHILE ON 24 I WAS ASKED IF I HAD WANTED 24 AND REPLIED I REQUESTED FL220 BUT WOULD TAKE FL240 AND CONTINUED TAXI TO 12L WHILE THE TWR CTLR ADVISED ME RWY 13 AND 12L DO NOT INTERSECT. HE THEN ISSUED TKOF CLRNC. THE PROBLEM SEEMS TO BE UNFAMILIARITY WITH THE USE OF RWYS NOT IN CURRENT ACTIVE USE AS TAXIWAYS AND THE UNSPECIFIC RULES OF USE OF RWYS FOR TAXI, ALSO SAYING '24' WITHOUT THE WORD RWY BEFORE IT MAKES MEANINGS UNCLR. THIS COULD BE AVOIDED BY A CLRNC 'TAXI TO RWY 12L VIA RWY 13 AND TAXIWAY CHARLIE DO NOT CROSS RWY 24.' THERE WAS NO COLLISION OR APPARENT HAZARD THIS TIME.

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.