Narrative:

We filed the kodix 2 departure out of sdq to mia which calls for a left turn after departure to intercept W4 (351 degree radial off of cdo). Clearance we received was 'as filed, climb to FL310, cleared for takeoff.' no departure frequency given and no further instructions. After takeoff we noticed 2 aircraft to our left at approximately same altitude and 5 mi away on TCASII. We visually looked and never did see the other aircraft. We monitored our turn in relation to the TCASII display and were about to ask the tower for a frequency change when tower excitedly called and switched us to sdq center on 119.3. Changed frequency and sdq center controller very excitedly asked why we had turned left after takeoff without clearance. We explained our clearance and he went quiet. I believe contributing factor in confusion is the language difference between us and them. Sdq tower never gave us the clearance that sdq center wanted us to receive. Never got closer than 5 mi to other aircraft. Supplemental information from acn 365010: we flew the departure as published. After switching to sdq center, they notified us that we were supposed to maintain runway heading after departure. At that time we were level at 4000 ft MSL. We were instructed to immediately turn right approximately 30 degrees to heading 020 degrees. There was also some discussion about opposite traffic at the same altitude.

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Original NASA ASRS Text

Title: B727 RECEIVES CLRNC AS FILED AND FOLLOWS SID. TWR DELAYS HDOF TO CTR FREQ. CTR CTLR CHANGES HDG IN AN EVASIVE MANEUVER TO AVOID OTHER CONFLICTING TFC. RPTR CITES AN ATC COORD PROB IN TWR FAILING TO GIVE AMENDED HDG INFO.

Narrative: WE FILED THE KODIX 2 DEP OUT OF SDQ TO MIA WHICH CALLS FOR A L TURN AFTER DEP TO INTERCEPT W4 (351 DEG RADIAL OFF OF CDO). CLRNC WE RECEIVED WAS 'AS FILED, CLB TO FL310, CLRED FOR TKOF.' NO DEP FREQ GIVEN AND NO FURTHER INSTRUCTIONS. AFTER TKOF WE NOTICED 2 ACFT TO OUR L AT APPROX SAME ALT AND 5 MI AWAY ON TCASII. WE VISUALLY LOOKED AND NEVER DID SEE THE OTHER ACFT. WE MONITORED OUR TURN IN RELATION TO THE TCASII DISPLAY AND WERE ABOUT TO ASK THE TWR FOR A FREQ CHANGE WHEN TWR EXCITEDLY CALLED AND SWITCHED US TO SDQ CTR ON 119.3. CHANGED FREQ AND SDQ CTR CTLR VERY EXCITEDLY ASKED WHY WE HAD TURNED L AFTER TKOF WITHOUT CLRNC. WE EXPLAINED OUR CLRNC AND HE WENT QUIET. I BELIEVE CONTRIBUTING FACTOR IN CONFUSION IS THE LANGUAGE DIFFERENCE BTWN US AND THEM. SDQ TWR NEVER GAVE US THE CLRNC THAT SDQ CTR WANTED US TO RECEIVE. NEVER GOT CLOSER THAN 5 MI TO OTHER ACFT. SUPPLEMENTAL INFO FROM ACN 365010: WE FLEW THE DEP AS PUBLISHED. AFTER SWITCHING TO SDQ CTR, THEY NOTIFIED US THAT WE WERE SUPPOSED TO MAINTAIN RWY HDG AFTER DEP. AT THAT TIME WE WERE LEVEL AT 4000 FT MSL. WE WERE INSTRUCTED TO IMMEDIATELY TURN R APPROX 30 DEGS TO HDG 020 DEGS. THERE WAS ALSO SOME DISCUSSION ABOUT OPPOSITE TFC AT THE SAME ALT.

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.