A HELI INSTRUCTOR PLT FELT THAT HE HAD TO FLY UNDER WIRES ON A HOT DAY.

Narrative

I WAS ASSISTING AN ATP CANDIDATE IN PERFORMING CONFINED AREA OPS IN THE GENERAL VICINITY OF THE ARPT/TRAINING FACILITY AT WHICH I AM EMPLOYED. AFTER AN INITIAL HIGH ALT RECONNAISSANCE WAS MADE AND A WIND EVALUATION ACCOMPLISHED; I ALLOWED THE ATP CANDIDATE TO PERFORM THE MANEUVER TO THE CONFINED AREA THAT WE FREQUENTLY USE FOR TRAINING PURPOSES. WHEN WE TERMINATED THE APCH IN THE CONFINED AREA; I DETERMINED THAT; DUE TO PARTICULAR WX (HEAT) AND PERFORMANCE LIMITATIONS; THE ONLY SAFE WAY TO DEPART FROM THAT AREA WAS TO FLY DIRECTLY UNDER A ROW OF PWR LINES TO AN AREA THAT PROVIDED A SAFE LNDG ZONE IN THE EVENT OF AN ENG FAILURE DURING THE DEP. ALTHOUGH A NORMAL DEP FROM THE CONFINED AREA COULD BE ACCOMPLISHED BY PARALLELING THE PWR LINES AND THEN GAINING ENOUGH HT TO CLR THEM; I FELT THAT DUE TO THE PROX OF THE PWR LINES AND A ROW OF TREES THAT WERE IN THE DEP PATH; THAT IT WOULD BE BEST TO MINIMIZE THE TIME FACTOR IN THE HT/VELOCITY CURVE OF THE HELI BEING FLOWN AS WELL AS BEING ABLE TO SAFELY LAND IN AN EMER. THE TOTAL AMOUNT OF TIME SPENT XING UNDER THE PWR LINES WAS LESS THAN 10 SECONDS. THERE WAS ADEQUATE CLRNC SEPARATING THE PWRLINES FROM THE MAIN ROTOR OF THE HELI. I HAVE SELECTED A BETTER AREA TO PERFORM CONFINED AREA OPS AND USE IT EXCLUSIVELY TO REDUCE THE THREAT TO THE SAFETY OF FLT.