Narrative:

Air carrier Y departed runway 4R on LOGAN4 SID flight planned to go to lucos intersection. Air carrier X departed runway 9 on PATTS1 SID. When air carrier Y was approximately 12 NM northeast of bos; the pilot was assigned a heading of 130 to parallel the second portion of the PATTS1 SID. Apparently realizing that air carrier Y was turning toward them; the pilot of air carrier X stated that they were still on 'runway heading'. Air carrier X was immediately assigned a right turn to heading 220 to maintain separation. Air carrier X was then asked to verify the assignment of the PATTS1 SID. Strip marking indicated the PATTS1 SID assignment. After a moment the pilot confirmed that they had been assigned the correct procedure. The pilot also asked if separation had been lost between the 2 aircraft. This incident was then reported to the flm (front line manager) on duty. Recommendation; most pilots from bos are receiving their IFR clearances via pre departure clearance. They are only required to read back their 'call sign and transponder code' to tower personnel; 'unless they have a question'. Since bos now has 8 different sids; this submitter believes that: 1. Pilots should be required to read back; call sign; assigned SID; and transponder code to clearance delivery. 2. Local control phraseology should be changed to -- air carrier X; fly the PATTS1 departure; runway nine cleared for takeoff. 3. Pilot initial check in with departure control should include: call sign; SID; and altitudes.

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Original NASA ASRS Text

Title: A90 Controller described wrong SID routing event when air carrier flew other than assigned SID; secondary pilot report indicated PDC clearance was misread and incorrect SID was entered into FMS.

Narrative: Air Carrier Y departed Runway 4R on LOGAN4 SID flight planned to go to LUCOS intersection. Air Carrier X departed Runway 9 on PATTS1 SID. When Air Carrier Y was approximately 12 NM northeast of BOS; the Pilot was assigned a heading of 130 to parallel the second portion of the PATTS1 SID. Apparently realizing that Air Carrier Y was turning toward them; the Pilot of Air Carrier X stated that they were still on 'runway heading'. Air Carrier X was immediately assigned a right turn to heading 220 to maintain separation. Air Carrier X was then asked to verify the assignment of the PATTS1 SID. Strip marking indicated the PATTS1 SID assignment. After a moment the Pilot confirmed that they had been assigned the correct procedure. The Pilot also asked if separation had been lost between the 2 aircraft. This incident was then reported to the FLM (Front Line Manager) on duty. Recommendation; most pilots from BOS are receiving their IFR Clearances via PDC. They are only required to read back their 'Call Sign and transponder code' to Tower personnel; 'unless they have a question'. Since BOS now has 8 different SIDs; this submitter believes that: 1. Pilots should be required to read back; Call Sign; Assigned SID; and Transponder Code to Clearance Delivery. 2. Local Control phraseology should be changed to -- Air Carrier X; fly the PATTS1 departure; Runway Nine cleared for takeoff. 3. Pilot initial check in with Departure Control should include: Call Sign; SID; and altitudes.

Data retrieved from NASA's ASRS site as of April 2012 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.