C208 CARGO PLT TOOK OFF FROM EWR WITHOUT CLRNC.

Narrative

WHILE WAITING TO TAKE OFF FROM RWY 4R AT EWR; I WAS TOLD TO HOLD SHORT FOR A LARGE ACR JET; WHICH WAS LNDG. AFTER THE JET LANDED; I WAS TOLD BY THE TWR CTLR TO TAXI INTO POS AND HOLD ON RWY 4R. BUT THEN I WAS INFORMED THAT THERE WAS AN ACFT ON A (SOME DISTANCE) MI FINAL. THIS INFO IS USUALLY GIVEN TO AN ACFT THAT HAS BEEN CLRED FOR AN IMMEDIATE TKOF; WITHOUT DELAY; SINCE IT LETS THE PLT KNOW THAT SEPARATION DISTANCE IS CRITICAL AND A DELAY COULD COMPROMISE THIS SEPARATION. THIS FACT; COUPLED WITH THE CTLR'S TONE; WHICH I PERCEIVED AS ANXIOUS; LED ME TO THINK THAT I HAD BEEN CLRED FOR A TKOF WITHOUT DELAY. THE FACT IS THAT I HAD NOT RECEIVED A TKOF CLRNC; BUT DID NOT REALIZE THIS UNTIL IT WAS CALLED TO MY ATTN ON THE CLBOUT. I ALSO BELIEVE THAT BY THE TIME I BEGAN MY TKOF ROLL; THE LNDG ACR JET HAD CLRED THE ACTIVE RWY; JUDGED BY THE CONVERSATION BTWN THE PLT AND THE TWR CTLR REGARDING TAXI INSTRUCTIONS. THE TWR CTLR WAS ALSO ACTING AS THE GND CTLR. ALSO; I DO NOT REMEMBER SEEING THE JET ON THE RWY DURING MY TKOF ROLL. I BELIEVE THERE WERE OTHER FACTORS; WHICH CONTRIBUTED TO THIS INCIDENT. ONE WAS THE PRESSURE FROM MY JOB TO TAKE OFF ASAP. ANOTHER WAS THE STRESS I WAS FEELING FROM OPERATING AT A LARGE; INTIMIDATING AND UNFAMILIAR ARPT. ADDITIONALLY; I WAS STRESSED OUT FROM HAVING HAD TO CHANGE ACFT AT THE LAST MIN; WHICH TOOK TIME TO SET UP FOR THE FLT; AND CAUSED SOME DELAY. OTHER FACTORS WHICH I FEEL PLAYED A ROLE INCLUDED THE FACT THAT I HAD BEEN AWAKE FOR ABOUT 20 HRS HAVING BEEN UNABLE TO GET ANY REST AT THE PLT CREW ROOM DUE TO EXCESSIVE NOISE. SEVERAL PLTS HAVE COMPLAINED ABOUT THIS BASE; DUE TO THE STRESSES OF OPERATING IN THE BUSY TERMINAL AREA; AT NIGHT; SOMETIMES IN IMC; BEING RUSHED TO CONDUCT INST APCHS AT APCH SPDS WELL ABOVE NORMAL; TO KEEP UP WITH LARGER JETS; AND THEN HAVING TO TAXI IN A CONFUSING ARPT. I BELIEVE THIS ADDED TO MY FATIGUE AND CAUSED AN ADVERSE EFFECT ON MY JUDGEMENT AND AWARENESS AND PERCEPTION.