Air carrier flight crew responds before clearance completely issued. Taxiway incursion.

Attributes
ACN	196831
Time
Date	199112
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dca
State Reference	DC
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	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 18724 flight time type : 60
ASRS Report	196831
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence : clearance other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After landing on runway 18 at dca, during rollout, tower said, 'turn right (I began the right turn as we were approaching taxiway east and runway 21). Taxiway a, runway 21 is not available. I was able to turn hard into taxiway east and avoid runway 21. Usually aircraft are cleared from runway 18 onto runway 21 and then to the ramp. These late instructions almost resulted in a runway incursion. Things move quickly at dca and we all try to clear the runway as soon as possible. Better instructions would have been, 'continue across runway 21 and turn right taxiway a.'

Original NASA ASRS Text

Title: ACR FLC RESPONDS BEFORE CLRNC COMPLETELY ISSUED. TAXIWAY INCURSION.

Narrative: AFTER LNDG ON RWY 18 AT DCA, DURING ROLLOUT, TWR SAID, 'TURN R (I BEGAN THE R TURN AS WE WERE APCHING TAXIWAY E AND RWY 21). TAXIWAY A, RWY 21 IS NOT AVAILABLE. I WAS ABLE TO TURN HARD INTO TAXIWAY E AND AVOID RWY 21. USUALLY ACFT ARE CLRED FROM RWY 18 ONTO RWY 21 AND THEN TO THE RAMP. THESE LATE INSTRUCTIONS ALMOST RESULTED IN A RWY INCURSION. THINGS MOVE QUICKLY AT DCA AND WE ALL TRY TO CLR THE RWY AS SOON AS POSSIBLE. BETTER INSTRUCTIONS WOULD HAVE BEEN, 'CONTINUE ACROSS RWY 21 AND TURN R TAXIWAY A.'

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.