DH8 crew did not follow published heading on STAR.

Attributes
ACN	403510
Time
Date	199806
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : tpa
State Reference	FL
Altitude	msl bound lower : 7000 msl bound upper : 7000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : tpa
Operator	common carrier : air carrier
Make Model Name	Dash 8 Series Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Aircraft 2
Make Model Name	Dash 8 Series Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	other other : other pilot : instrument pilot : cfi pilot : atp
Experience	flight time last 90 days : 20 flight time total : 9000 flight time type : 6000
ASRS Report	403510
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	other other : other pilot : instrument pilot : commercial
Events
Anomaly	non adherence : clearance non adherence : published procedure other spatial deviation
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:

Acting as PNF, on 'dades three' arrival into tpa descending to 7000 ft. When controller asked if we had been cleared to fly anything other than the dades arrival, I checked with the first officer (who was flying), because I had been off the frequency talking to the company. The first officer said 'no' we were still on the dades arrival. ATC gave us a vector from our southwest course back to the southeast (and subsequently to the south). Upon checking the arrival procedure we saw that a new intersection had been added to the procedure. For a 'north' landing, we should have turned to 180 degrees at 'tumpy.' our FMS had been updated with the intersection but the aircraft had proceeded towards the VOR (which was the next fix after the intersection), as it was designed to do unless re-directed by the crew (for purposes of landing north). I had failed to notice the new intersection because I was 'playing catch up' with the descent procedure due to my recent inactivity in line flying (7 days of flying in the last 4 month period). No excuse, and complacency in assuming that the procedure hadn't changed during the previous several months.

Original NASA ASRS Text

Title: DH8 CREW DID NOT FOLLOW PUBLISHED HEADING ON STAR.

Narrative: ACTING AS PNF, ON 'DADES THREE' ARR INTO TPA DSNDING TO 7000 FT. WHEN CTLR ASKED IF WE HAD BEEN CLRED TO FLY ANYTHING OTHER THAN THE DADES ARR, I CHKED WITH THE FO (WHO WAS FLYING), BECAUSE I HAD BEEN OFF THE FREQ TALKING TO THE COMPANY. THE FO SAID 'NO' WE WERE STILL ON THE DADES ARR. ATC GAVE US A VECTOR FROM OUR SW COURSE BACK TO THE SE (AND SUBSEQUENTLY TO THE S). UPON CHKING THE ARR PROC WE SAW THAT A NEW INTXN HAD BEEN ADDED TO THE PROC. FOR A 'N' LNDG, WE SHOULD HAVE TURNED TO 180 DEGS AT 'TUMPY.' OUR FMS HAD BEEN UPDATED WITH THE INTXN BUT THE ACFT HAD PROCEEDED TOWARDS THE VOR (WHICH WAS THE NEXT FIX AFTER THE INTXN), AS IT WAS DESIGNED TO DO UNLESS RE-DIRECTED BY THE CREW (FOR PURPOSES OF LNDG N). I HAD FAILED TO NOTICE THE NEW INTXN BECAUSE I WAS 'PLAYING CATCH UP' WITH THE DSCNT PROC DUE TO MY RECENT INACTIVITY IN LINE FLYING (7 DAYS OF FLYING IN THE LAST 4 MONTH PERIOD). NO EXCUSE, AND COMPLACENCY IN ASSUMING THAT THE PROC HADN'T CHANGED DURING THE PREVIOUS SEVERAL MONTHS.

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.