Narrative:

The captain had to check in with the company and also talk to the passenger. So, I took over control of the radios while monitoring the autoplt. We were in a hold on the robbinsville 1 arrival (eno.RBV1). While turning onto the first downwind leg, ATC instructed us to 'continue downwind and I'll have an approach clearance for you shortly.' a few seconds later the captain resumed radio control. After the 1 min leg was up, I turned inbound on the hold. ATC then said 'you aren't turning back towards robbinsville are you?' we said 'say again' and he said 'disregard' we then had a traffic alert from 800 ft above us. Several seconds later he had us turn early to the outbound leg. No further problems. It was my understanding that I was to remain in the hold because the controller used 'holding' terminology rather than assigning me 'remain on current heading' or 'fly heading 250 degrees until advised.'

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Original NASA ASRS Text

Title: AN EMB145 FO TURNS BACK INBOUND IN THE RBV HOLDING PATTERN WHEN THE N90 CTLR HAD ASKED THE FLT TO 'CONTINUE DOWNWIND (LEG).'

Narrative: THE CAPT HAD TO CHK IN WITH THE COMPANY AND ALSO TALK TO THE PAX. SO, I TOOK OVER CTL OF THE RADIOS WHILE MONITORING THE AUTOPLT. WE WERE IN A HOLD ON THE ROBBINSVILLE 1 ARR (ENO.RBV1). WHILE TURNING ONTO THE FIRST DOWNWIND LEG, ATC INSTRUCTED US TO 'CONTINUE DOWNWIND AND I'LL HAVE AN APCH CLRNC FOR YOU SHORTLY.' A FEW SECONDS LATER THE CAPT RESUMED RADIO CTL. AFTER THE 1 MIN LEG WAS UP, I TURNED INBOUND ON THE HOLD. ATC THEN SAID 'YOU AREN'T TURNING BACK TOWARDS ROBBINSVILLE ARE YOU?' WE SAID 'SAY AGAIN' AND HE SAID 'DISREGARD' WE THEN HAD A TFC ALERT FROM 800 FT ABOVE US. SEVERAL SECONDS LATER HE HAD US TURN EARLY TO THE OUTBOUND LEG. NO FURTHER PROBS. IT WAS MY UNDERSTANDING THAT I WAS TO REMAIN IN THE HOLD BECAUSE THE CTLR USED 'HOLDING' TERMINOLOGY RATHER THAN ASSIGNING ME 'REMAIN ON CURRENT HDG' OR 'FLY HDG 250 DEGS UNTIL ADVISED.'

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.