Captain of air carrier light transport aircraft taxied onto taxiway from ramp without clearance.

Attributes
ACN	211517
Time
Date	199205
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : pit
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : iah
Operator	common carrier : air carrier
Make Model Name	Light Transport, High Wing, 2 Turboprop Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	oversight : pic
Qualification	pilot : cfi pilot : commercial pilot : atp
Experience	flight time total : 8000 flight time type : 10
ASRS Report	211517
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer
Events
Anomaly	conflict : ground less severe non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Most of the ramp area at pit is controled by ramp control. When a commuter leaves the commuter parking area, the initial contact is with ramp control. They give the initial taxi clearance. I was taxiing out for departure. I left by way of oscar, taxiing to tango. The instructions we were given by ramp control were: 'runway 28R, contact ground when entering papa.' (no 'hold short of papa' or 'contact ground at papa' instruction, which is the usual instruction). I interpreted the instructions as cleared to taxi runway 28R and contact ground control while traversing papa. (Note: papa is the point where ramp control interfaces with ground. Oscar taxiway is totally controled by ramp, and tango and papa are controled by ground). Ground control was upset because they had another commuter aircraft on papa going to the main ramp. They wanted me to hold short of papa, let the other guy taxi in, and then proceed onto tango. Note: I have had similar experiences when I have been taxiing in. I am on papa and someone cuts in front (oscar to tango). It's just a busy point on this airport. It's the main point over which aircraft taxi in and out to the east half of the terminal.

Original NASA ASRS Text

Title: CAPT OF AIR CARRIER LTT ACFT TAXIED ONTO TAXIWAY FROM RAMP WITHOUT CLRNC.

Narrative: MOST OF THE RAMP AREA AT PIT IS CTLED BY RAMP CTL. WHEN A COMMUTER LEAVES THE COMMUTER PARKING AREA, THE INITIAL CONTACT IS WITH RAMP CTL. THEY GIVE THE INITIAL TAXI CLRNC. I WAS TAXIING OUT FOR DEP. I LEFT BY WAY OF OSCAR, TAXIING TO TANGO. THE INSTRUCTIONS WE WERE GIVEN BY RAMP CTL WERE: 'RWY 28R, CONTACT GND WHEN ENTERING PAPA.' (NO 'HOLD SHORT OF PAPA' OR 'CONTACT GND AT PAPA' INSTRUCTION, WHICH IS THE USUAL INSTRUCTION). I INTERPRETED THE INSTRUCTIONS AS CLRED TO TAXI RWY 28R AND CONTACT GND CTL WHILE TRAVERSING PAPA. (NOTE: PAPA IS THE POINT WHERE RAMP CTL INTERFACES WITH GND. OSCAR TAXIWAY IS TOTALLY CTLED BY RAMP, AND TANGO AND PAPA ARE CTLED BY GND). GND CTL WAS UPSET BECAUSE THEY HAD ANOTHER COMMUTER ACFT ON PAPA GOING TO THE MAIN RAMP. THEY WANTED ME TO HOLD SHORT OF PAPA, LET THE OTHER GUY TAXI IN, AND THEN PROCEED ONTO TANGO. NOTE: I HAVE HAD SIMILAR EXPERIENCES WHEN I HAVE BEEN TAXIING IN. I AM ON PAPA AND SOMEONE CUTS IN FRONT (OSCAR TO TANGO). IT'S JUST A BUSY POINT ON THIS ARPT. IT'S THE MAIN POINT OVER WHICH ACFT TAXI IN AND OUT TO THE E HALF OF THE TERMINAL.

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.