BE58 pilot departing sig on the river transition experienced a near midair collision with an aircraf...

Narrative:

I departed sig airport on the river transition as per tower instruction. The river transition states: depart on a heading 070 climb 1500 ft until passing the shoreline then direct sju tower fly overhead and 095 heading between the runways. I was cleared for takeoff and advised of traffic on the 'tango' transition (2000 ft overhead the tower until reaching the reef approximately 2 miles north and then enter downwind for sig. Once airborne I checked in with sju tower and was again advised of the traffic. I observed the traffic on TCAS and saw that he had started his descent early and decided to fly closer to the shoreline than usual to avoid any issues. I then observed the traffic on TCAS turn north and turned on all of my exterior lights; sju once again advises of traffic '12 o'clock same altitude' I then see the traffic at my altitude heading straight for me less than 500 ft and slightly left of the nose; I banked hard right and he banked left; I advised the traffic over the frequency that there is a procedure and that he should follow it; I also advised tower of the incident. Upon my arrival I called the tower to not only complain about this operators continuous disregard for the rules; but also to thank them for trying to help as best they could and to see if there was anything I could do better or different in the future.

Original NASA ASRS Text

Title: BE58 pilot departing SIG on the River transition experienced a NMAC with an aircraft arriving SIG; but not complying with published procedures.

Narrative: I departed SIG airport on the River transition as per tower instruction. The river transition states: depart on a heading 070 climb 1500 ft until passing the shoreline then direct SJU tower fly overhead and 095 heading between the runways. I was cleared for takeoff and advised of traffic on the 'TANGO' transition (2000 ft overhead the tower until reaching the reef approximately 2 miles north and then enter downwind for SIG. Once airborne I checked in with SJU Tower and was again advised of the traffic. I observed the traffic on TCAS and saw that he had started his descent early and decided to fly closer to the shoreline than usual to avoid any issues. I then observed the traffic on TCAS turn north and turned on all of my exterior lights; SJU once again advises of traffic '12 o'clock same altitude' I then see the traffic at my altitude heading straight for me less than 500 ft and slightly left of the nose; I banked hard right and he banked left; I advised the traffic over the frequency that there is a procedure and that he should follow it; I also advised tower of the incident. Upon my arrival I called the Tower to not only complain about this operators continuous disregard for the rules; but also to thank them for trying to help as best they could and to see if there was anything I could do better or different in the future.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1457595
Time
Date	201706
Local Time Of Day	1201-1800
Place
Locale Reference	SJU.Airport
State Reference	PR
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Baron 58/58TC
Operating Under FAR Part	Part 91
Flight Phase	Climb
Flight Plan	None
Aircraft 2
Make Model Name	Small Transport
Operating Under FAR Part	Part 135
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 89 Flight Crew Total 6065 Flight Crew Type 1564
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 75 Vertical 50

BE58 pilot departing sig on the river transition experienced a near midair collision with an aircraft arriving sig; but not complying with published procedures.