PLT OF C172 ENTERS CLASS D AND TFC PATTERN WITHOUT CLRNC. DUE TO RUSHED FLT PLANNING; PLT WAS NOT AWARE ARPT WAS TWR CTLED.

Narrative

I WAS FLYING A MISSION TO PICK UP A PATIENT IN ZZZ3; AND BRING HER TO ZZZ2. FOR ALMOST 2 HRS; I STARED AT THE SUN AS THE SUN SET; WHICH MAY HAVE HAD MORE EFFECT THAN I REALIZED AT THE TIME; AS WELL AS THE FACT THAT I HAD FLOWN ABOUT 6 HRS TOTAL AT THE TIME OF THE INCIDENT AND HAD BEEN UP FOR 12 HRS. WHEN I WAS ABOUT 5 MI FROM ZZZ2; APCH CLRED ME TO SWITCH FREQS TO TALK ON CTAF. AFTER I LANDED; I ASKED THE PATIENT TO DIRECT ME TO WHERE HER FAMILY WOULD PICK HER UP. SHE SEEMED CONFUSED. I TOOK THE FIRST TXWY TO THE L WHICH HAD A SIGN POINTING THE WAY TO THE FBO. AS I WAS TAXIING TO THE FBO; THE PATIENT SAID; 'WE ARE AT THE WRONG ARPT. I TOLD MY KIDS TO PICK ME UP AT THE OTHER ONE.' SHE EVENTUALLY BECAME CONVINCED THAT ZZZ WAS SUPPOSED TO BE OUR DEST. I LOOKED AT MY IFR CHARTS AND AT THE ILS #1 PLATE FOR ZZZ. I OBVIOUSLY DID NOT STUDY THE PLATE CLOSELY ENOUGH BECAUSE I SAW THE UNICOM FREQ AND CONSIDERED THAT IT TOO WAS AN UNCTLED FIELD. WE TOOK OFF TOWARD ZZZ. I IMMEDIATELY BEGAN CALLING OUT MY RANGE AND INTENTIONS ON THE UNICOM FREQ. AT ABOUT 2.5 MI OUT ON FINAL; A VOICE CAME ON THE RADIO AND SAID 'YOU NEED TO BE ON TWR.' IT WAS AT THIS MOMENT I KNEW I HAD BLUNDERED. I IMMEDIATELY CHANGED TO TWR AND SAID; 'THIS IS ACFT X ON 2 MI FINAL. WHAT DO YOU WANT ME TO DO?' THE CTLR BROADCASTED; 'IF YOU ARE THE GUY ON FINAL; LAND!' HE TOLD A NAVAJO TO DO A 360 DEGS. TWR HAD ME LAND; DIRECTED ME TO TXWY 'X' AND THEN TO A PARKING SPOT. HE TOLD ME TO CALL THE TWR AND TO GET THE NUMBER FROM THE FBO. I RELAYED MY STORY TO HIM; BASICALLY THAT I THOUGHT I WAS COMING TO AN UNCTLED FIELD. THAT I HAD OVERLOOKED THE 'D' ON MY IFR CHART AS WELL AS THE TWR FREQ ON THE APCH PLATE; AND THAT I HAD LANDED AT ZZZ2 AND HAD THEN BEEN TOLD BY THE PAX THAT WE WERE AT THE WRONG ARPT. I REALIZED THAT I HAD MADE A MAJOR ERROR AND DID NOT DISAGREE WITH THE CTLR AT ALL. THINGS I HAVE LEARNED FROM THIS EVENT: 1) BE AWARE OF FATIGUE AND LENGTH OF AWAKE HRS COMPARED TO FLTS. 2) SLOW WAY DOWN WHEN SOMETHING OUT OF THE PLAN POPS UP; DO NOT BE RUSHED WHEN THERE IS NOT AN IMMEDIATE EMER. 3) IT NEVER HURTS TO TALK TO APCH EVEN ON SHORT FLTS. IF I HAD BEEN TALKING TO APCH AND TOLD THEM THAT WE HAD LANDED AT ONE ARPT AND THE PAX NOW THINKS HER FAMILY IS AT ANOTHER ARPT; I MIGHT HAVE PICKED UP A CLUE WHEN THEY SWITCHED ME TO TWR FREQ; ALSO HE MIGHT HAVE COORDINATED WITH TWR AND TWR WOULD HAVE BEEN LOOKING FOR ME. 4) HAD I LOOKED AT THE VFR CHART I MIGHT HAVE HAD ANOTHER CUE TO PICK UP THE CLASS D AIRSPACE. THIS WAS A MISTAKE I HAVE NEVER MADE BEFORE IN 24 YRS OF FLYING AND WILL BE VERY DILIGENT TO NEVER MAKE AGAIN.