A C177 PLT LANDED ON THE WRONG RWY AT ACK.

Narrative

EXPECTED VECTOR TO RWY 24 DUE TO DIRECTION OF MY APCH. AT HDOF TO ACK TWR; WAS INSTRUCTED TO DSND/MAINTAIN AT OR ABOVE 2000 FT UNTIL PASSING OVERHEAD THE ARPT; THEN ENTER R DOWNWIND FOR RWY 30. ALTHOUGH STRICTLY VFR ON THIS FLT; I CONSULTED THE GOV TERMINAL PROCS ARPT DIAGRAM FOR NANTUCKET TO CONFIRM MY MENTAL PICTURE OF TFC FLOW. COMPLIED WITH ALT RESTR AND LINED UP ON THE DOWNWIND FOR RWY 30. COMPLETED ACFT RECONFIGN AND LNDG CHKLIST IN TIMELY FASHION. DISTR BEGAN AS I SCANNED OVER MY SHOULDER FOR STEADY STREAM OF COMMUTER TFC INBOUND TO RWY 24. TWR CLRED ME TO LAND AND I READ BACK LNDG CLRNC FOR RWY 30. WHILE LOOKING BACK TO CHK SEQUENCE WITH COMMUTER TFC; TWR AMENDED MY CLRNC TO LAND AND HOLD SHORT OF RWY 24. READ BACK THE HOLD SHORT INSTRUCTIONS AND CONFIGURED ACFT FOR SHORT FIELD LNDG. ROLLED OUT OF BASE TURN EARLY AND LINED UP WITH RWY TO MY R. RWY LOOKED VERY FAMILIAR AND APPROPRIATE TO ME FOR THE GUSTY NORTHWESTERLY SURFACE WIND -- I HAD LANDED ON IT MANY TIMES IN MY 6 YR CAREER WITH THE REGIONAL AIRLINES; SOME 10 YRS AGO. LOOKING TO THE FAR END OF MY LNDG RWY TO MAINTAIN SEQUENCING/SEPARATION FROM RWY 24 TFC AND COMPLY WITH LAHSO INSTRUCTIONS; I NEVER SAW THE NUMBERS FOR RWY 33 WHERE I'D LINED UP. EXECUTED SHORT FIELD LNDG AND STOPPED ACFT WELL SHORT OF INTXN. AS COMMUTER TFC PASSED INTXN; TWR CTLR ISSUED TAXI INSTRUCTIONS FOR ME TO CLR THE ACTIVE RWYS; THEN ADDED REQUEST THAT IN FUTURE I COMPLY WITH ASSIGNED LNDG RWY. I READ BACK TAXI INSTRUCTIONS; APOLOGIZED FOR MY MISTAKE; PROCEEDED TO THE GA RAMP WITHOUT FURTHER INCIDENT. THERE WAS NO TFC CONFLICT. IT APPEARS SAFETY WAS NOT COMPROMISED. ETERNAL VIGILANCE IS THE PRICE WE PAY FOR THE PRIVILEGE OF FLYING SAFELY. IN MY CONCERN FOR THE SEE AND AVOID PRINCIPLE; I MADE A DIFFERENT ERROR. AND THIS IN SPITE OF HAVING TAKEN THE EXTRA PRECAUTION OF OPENING THE INST APCH PLATE BINDER TO THE ARPT DIAGRAM. FATIGUE MAY HAVE CONTRIBUTED TO MY DISTR. I DELIBERATELY TOOK EXTRA PRECAUTIONS IN ALL PREPARATION PHASES FOR THIS FLT TO COMPENSATE FOR ANY POTENTIAL EROSION OF MY CONCENTRATION. THE WX WAS EXCELLENT.