ZBW ARTCC controller reports of recurring aircraft deviations while on the manchester PPORT1 SID. Re...

Narrative:

This is a recurring problem. When departing manchester on the PPORT1 SID; nelie transition; certain aircraft will fly the route until hitting the pport fix. At this point the FMS will kick out the rest of the departure and will navigate direct nelie. This is an extremely dangerous situation as pport direct nelie puts these flights in direct conflict with boston departures on the HYLND4 SID and bos arrivals on the QUABN3 STAR. The PPORT1 is designed to purposefully de-conflict these routes; having an aircraft not fly the full route can result in confliction with multiple other flights controlled by other sectors. In this case the pilot told me what had happened and that the plane was turning towards nelie. I put him on a 200 heading to keep him away from the boston departures until he was able to rejoin the SID at jjimy. In the past; pilots were unaware of what happened and continued towards nelie without notifying ATC. Fortunately with winter traffic volume we are able to notice the deviation fairly quickly; however; with heavier summer volume we may not notice the problem until two aircraft are already in confliction.

Original NASA ASRS Text

Title: ZBW ARTCC Controller reports of recurring aircraft deviations while on the Manchester PPORT1 SID. Reportedly; the procedure is being programmed wrong in the FMS software.

Narrative: This is a recurring problem. When departing Manchester on the PPORT1 SID; NELIE transition; certain aircraft will fly the route until hitting the PPORT fix. At this point the FMS will kick out the rest of the departure and will navigate direct NELIE. This is an extremely dangerous situation as PPORT direct NELIE puts these flights in direct conflict with Boston departures on the HYLND4 SID and BOS arrivals on the QUABN3 STAR. The PPORT1 is designed to purposefully de-conflict these routes; having an aircraft not fly the full route can result in confliction with multiple other flights controlled by other sectors. In this case the pilot told me what had happened and that the plane was turning towards NELIE. I put him on a 200 heading to keep him away from the Boston departures until he was able to rejoin the SID at JJIMY. In the past; pilots were unaware of what happened and continued towards NELIE without notifying ATC. Fortunately with winter traffic volume we are able to notice the deviation fairly quickly; however; with heavier summer volume we may not notice the problem until two aircraft are already in confliction.

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	1316316
Time
Date	201512
Local Time Of Day	1801-2400
Place
Locale Reference	ZBW.ARTCC
State Reference	NH
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Climb
Route In Use	SID PPORT1
Flight Plan	IFR
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 0.5
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Deviation - Track / Heading All Types

ZBW ARTCC controller reports of recurring aircraft deviations while on the manchester PPORT1 SID. Reportedly; the procedure is being programmed wrong in the FMS software.