WHEN A BE1900 FLC DOESN'T GET A XFER TO TWR FREQ BY APCH CTLR; THEY LAND WITHOUT CLRNC ON RWY 9 AT PHL; PA.

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ON APCH TO RWY 9R PHL WE WERE LAST ASSIGNED TO FOLLOW AN AIRPLANE; MAINTAIN 170 KTS TO A 5 MI FINAL; CLRED VISUAL APCH RWY 9R PHL. THE CTLR FORGOT TO XFER US TO TWR AND WE MISSED HIS MISTAKE AND MADE OUR OWN BY LNDG ON RWY 9R WITHOUT AN ATC CLRNC. THE PREVIOUSLY MENTIONED TFC WAS CLR OF THE RWY. THIS FLT WAS WITH A SIC WHO HAD LESS THAN 300 HRS TOTAL TIME WITH APPROX 13 HRS IN MAKE AND MODEL. I AM A LINE CHK AIRMAN AND WAS GIVING IOE AT THE TIME. I WAS PAYING TOO MUCH ATTN TO MY SIC STUDENT AND ALLOWED THE OCCURRENCE TO HAPPEN. WE DISCOVERED WE HAD LANDED WITHOUT CLRNC WHEN I ASKED 'APCH;' THINKING HE WAS 'TWR;' TO GO TO GND FOR TAXI. DURING MY 5000 OR SO HRS; THIS HAS OCCURRED TWICE. EACH TIME; THE APCH CTLR DIDN'T XFER THE FINAL APCH ACFT TO TWR. I BELIEVE THAT IS KEY ELEMENT TO PREVENTING IT. I ALWAYS SAY TO MYSELF; 'FLAPS 35 DEGS; GEAR RECHKED DOWN AND LOCKED; CLRED TO LAND' -- BUT I DIDN'T THIS TIME. MY EXTRA SAFETY CHK FAILED AND SO DID MY CREW MEMBER. HIS LACK OF EXPERIENCE IN TYPE WAS OVERWHELMING TO HIM AND HE MISSED IT ALSO. AN ALL AROUND FAILURE -- ATC/PIC/SIC. THIS IS A VERY GOOD LESSON ON WHICH I HAVE LEARNED VOLUMES. SUPPLEMENTAL INFO FROM ACN 458440: NO WHERE IN OUR TRAINING IS A SPECIFIC POINT THAT WE VERIFY WE ARE CLRED TO LAND. I BELIEVE IT SHOULD BE REQUIRED THAT WE HAVE A SPECIFIC CALLOUT AT A SPECIFIC TIME TO VERIFY A CLRNC TO LAND.