Narrative:

At teterboro airport there exists a VFR departure procedure for IFR aircraft. The procedure is designed simply to preclude IFR separation for traffic departing runway 19 to expedite departures from the airport. Unfortunately; this procedure results in departing aircraft coming within close proximity to arriving heavy jet and other IFR traffic that would otherwise require standard IFR separation. In this case; a gulfstream G200; departed runway 19 in compliance and accordance with the 'dalton departure' procedures. At the same exact time of the gulfstream G200's departure; an A330; landing ewr overflew teterboro and ended up less than 1/2 NM directly in front of the gulfstream G200. Vertical separation was somewhere between 500-600 ft. Standard radar separation between these two should be no less than 1;000 ft vertical and 5 miles horizontal. This dalton departure procedure is dangerous. Heavy jet traffic landing ewr are slowed and configured in such a way that the effects of wake turbulence are at their greatest. When aircraft departing teb cross underneath the ewr arrivals; they too are in a critical phase of flight and are being subjected to severe effects of wake turbulence as a result of this procedure. Please investigate further before an unfortunate incident occurs as a result of this procedure. Recommendation; discontinue the dalton departure until an investigation concludes that the procedure is safe and does not place aircraft in close proximity to other aircraft or directly into wake turbulence.

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Original NASA ASRS Text

Title: N90 Controller voiced concern regarding the published DALTON departure procedure from TEB and wake turbulence separation concerns between TEB departures and EWR arrival traffic.

Narrative: At Teterboro Airport there exists a VFR departure procedure for IFR aircraft. The procedure is designed simply to preclude IFR separation for traffic departing Runway 19 to expedite departures from the airport. Unfortunately; this procedure results in departing aircraft coming within close proximity to arriving heavy jet and other IFR traffic that would otherwise require standard IFR separation. In this case; a Gulfstream G200; departed Runway 19 in compliance and accordance with the 'Dalton Departure' procedures. At the same exact time of the Gulfstream G200's departure; an A330; landing EWR overflew Teterboro and ended up less than 1/2 NM directly in front of the Gulfstream G200. Vertical separation was somewhere between 500-600 FT. Standard RADAR separation between these two should be no less than 1;000 FT vertical and 5 miles horizontal. This Dalton Departure procedure is dangerous. Heavy jet traffic landing EWR are slowed and configured in such a way that the effects of wake turbulence are at their greatest. When aircraft departing TEB cross underneath the EWR arrivals; they too are in a critical phase of flight and are being subjected to severe effects of wake turbulence as a result of this procedure. Please investigate further before an unfortunate incident occurs as a result of this procedure. Recommendation; discontinue the Dalton Departure until an investigation concludes that the procedure is safe and does not place aircraft in close proximity to other aircraft or directly into wake turbulence.

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.