SMT PLT MAKES APCH TO WRONG ARPT.

Narrative

IFR FLT RVS TO DEST ARPT OKC; DOWNTOWN AIRPARK (2DT). ARRIVED OKC VIA TRUMP 5 ARR AND PROCEEDED DIRECT 2DT. TRACKED IN ON WILL ROGERS VOR (IRW) 203 DEGS. CLRED FOR VISUAL APCH TO 2DT. PLT INBOUND MISTAKENLY IDENTED RWY 35R AT OKC FOR INTENDED RWY 34 AT 2DT. BOTH ARPTS ARE ON THE SAME INBOUND RADIAL AND LOCATED 4-5 MI APART. OKC IS SW FROM 2DT. AT SOME POINT BTWN 2DT AND OKC; PLT ANNOUNCED TO OKC APCH CTL THAT HE IS INTENDING TO OR IN THE PROCESS OF OVER-FLYING THE ARPT AND IF THERE IS NO TFC IN THE AREA; DESIRES TO CANCEL HIS IFR FLT PLAN. CTL RESPONDS NO TFC IN AREA; IFR FLT PLAN IS CLOSED; FREQ CHANGE APPROVED AND TO SQUAWK 1200. PLT ACKNOWLEDGES AND MAKES CHANGES. PLT REQUESTS TA'S ON UNICOM 122.8 (AT 2DT) AND RECEIVED NO RESPONSE. PLT THEREAFTER CONTINUES TO ANNOUNCE POS WITH NO REPLY. PLT UNINTENTIONALLY PROCEEDS TO CROSS OVER OKC ARPT; TURNING SBOUND; THEN BASE AND FINAL FOR RWY 35R. UPON REALIZING INCORRECT RWY; CLBS AND PROCEEDS DIRECT TO 2DT AND LANDS. NO LOSS OF SEPARATION EVER EXISTED DURING INADVERTENT ENTRY INTO OKC AIRSPACE. TO PREVENT RE-OCCURRENCE: THE 2 ARPTS ARE CLOSE TOGETHER AND ON THE SAME INBOUND RADIAL FROM THE TRUMP INTXN. PLT SHOULD IDENT POSITIVELY AND BE VERY CONSCIOUS NOT TO OVERRUN 2DT. TOO; THIS PLT WILL NEVER AGAIN CANCEL HIS IFR FLT PLAN 'IN THE AIR' AND IN THIS CASE; LOSE RADIO COMS. MAINTAINING RADIO CONTACT IN THIS CASE WOULD HAVE AVOIDED THE AFOREMENTIONED SCENARIO.