Narrative:

Departure procedure issued by ATC stated 'straight ahead until igg 3.5 DME, turn left, 052 degree track to intercept det R-261 inbound by D19 det.' flew runway heading to 3.5 DME of igg then turned left to 052 degree heading. Strong south wind was blowing across the airport during our departure. Shortly after turning to 052 degree heading, departure issued 'turn right to 115 degree heading.' I wondered if we had been blown off the track departure control expected us to fly. In the united states of america, departures say runway heading, ILS back course or VOR radial. The phraseology 'straight ahead to 3.5 DME igg' has me asking 'do they expect us to fly the ILS back course, a track over the ground, or runway heading?' obviously, in no wind sits, this is not a problem, but still the wording is not clear as to what is expected. Recommend clarification of wording and intent by more specific instructions, particularly in foreign countries.

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Original NASA ASRS Text

Title: CONFUSION OVER ATC PHRASEOLOGY IN A FOREIGN COUNTRY.

Narrative: DEP PROC ISSUED BY ATC STATED 'STRAIGHT AHEAD UNTIL IGG 3.5 DME, TURN L, 052 DEG TRACK TO INTERCEPT DET R-261 INBOUND BY D19 DET.' FLEW RWY HDG TO 3.5 DME OF IGG THEN TURNED L TO 052 DEG HDG. STRONG S WIND WAS BLOWING ACROSS THE ARPT DURING OUR DEP. SHORTLY AFTER TURNING TO 052 DEG HDG, DEP ISSUED 'TURN R TO 115 DEG HDG.' I WONDERED IF WE HAD BEEN BLOWN OFF THE TRACK DEP CTL EXPECTED US TO FLY. IN THE UNITED STATES OF AMERICA, DEPS SAY RWY HDG, ILS BACK COURSE OR VOR RADIAL. THE PHRASEOLOGY 'STRAIGHT AHEAD TO 3.5 DME IGG' HAS ME ASKING 'DO THEY EXPECT US TO FLY THE ILS BACK COURSE, A TRACK OVER THE GND, OR RWY HDG?' OBVIOUSLY, IN NO WIND SITS, THIS IS NOT A PROB, BUT STILL THE WORDING IS NOT CLR AS TO WHAT IS EXPECTED. RECOMMEND CLARIFICATION OF WORDING AND INTENT BY MORE SPECIFIC INSTRUCTIONS, PARTICULARLY IN FOREIGN COUNTRIES.

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.