Narrative:

During climb out from slc; ATC cleared us to climb and deleted speed restriction. A short time later; ATC called and said; 'aircraft X; there seems to be some confusion on your departure clearance.' ATC then asked us to fly the routing as depicted on the WEVIC1 to cdc. Reprogrammed the FMS and found we were south of gitln; 3.0 nautical miles right (west) of the course line between gitln and loduy. We corrected to join the course line and were then cleared directly to drk. Background: pre departure clearance received at slc read as follows: 'WEVIC1 cdc zuzce then as filed maintain 14000 ft 230 kts; squawk xxxx.' looking at WEVIC1 SID on slc commercial chart; cdc is not listed as a transition; the climb to 14000 ft and 230 kt restriction is not exactly standard per the depicted route; and when selecting the departure in the FMS; there is no cdc transition available to select. Hence; when loaded; the WEVIC1 in the FMS stopped at wevic; and I assumed the next waypoint would be cdc. Had the pre departure clearance shown the clearance as 'WEVIC1.cdc' (note decimal point/period between WEVIC1 and cdc); or 'WEVIC1 cdc transition;' or 'norra' or 'bld' or 'ksino transition to cdc;' then it would have been more obvious to fly the depicted routing; and I would have loaded the FMS accordingly. Callback conversation with reporter revealed the following information: reporter emphasized the time pressures that existed as they tried to deal with a deferred anti-ice system and the potential icing conditions on the departure. The flight crew discussed the reporter's pre departure clearance interpretation briefly and decided it made sense to fly it as understood and programmed. They did not double check with ATC. He was dismayed by the presentation of the SID graphic and the pre departure clearance nomenclature which allowed both pilots to review it and make incorrect assumptions. He was aware that the '.' (dot) between a SID name and an associated transition indicated a clearance to fly the transition. The lack of such a dot; however; further reinforced the interpretation of the space as an indicator to fly 'direct.' he noted that spaces between fixes in an enroute clearance are displayed in exactly that way; i.e. 'Fix' (space) 'fix.'

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Original NASA ASRS Text

Title: Cessna 750 flight crew misinterpreted their PDC clearance via WEVIC ONE RNAV SID CDC; WEVIC direct to CDC; instead of via the intervening SID waypoints.

Narrative: During climb out from SLC; ATC cleared us to climb and deleted speed restriction. A short time later; ATC called and said; 'Aircraft X; there seems to be some confusion on your departure clearance.' ATC then asked us to fly the routing as depicted on the WEVIC1 to CDC. Reprogrammed the FMS and found we were South of GITLN; 3.0 nautical miles right (west) of the course line between GITLN and LODUY. We corrected to join the course line and were then cleared directly to DRK. Background: PDC received at SLC read as follows: 'WEVIC1 CDC ZUZCE then as filed maintain 14000 ft 230 kts; squawk xxxx.' Looking at WEVIC1 SID on SLC commercial chart; CDC is not listed as a transition; the climb to 14000 ft and 230 kt restriction is not exactly standard per the depicted route; and when selecting the departure in the FMS; there is no CDC transition available to select. Hence; when loaded; the WEVIC1 in the FMS stopped at WEVIC; and I assumed the next waypoint would be CDC. Had the PDC shown the clearance as 'WEVIC1.CDC' (note decimal point/period between WEVIC1 and CDC); or 'WEVIC1 CDC transition;' or 'NORRA' or 'BLD' or 'KSINO transition to CDC;' then it would have been more obvious to fly the depicted routing; and I would have loaded the FMS accordingly. Callback conversation with reporter revealed the following information: Reporter emphasized the time pressures that existed as they tried to deal with a deferred anti-ice system and the potential icing conditions on the departure. The flight crew discussed the reporter's PDC interpretation briefly and decided it made sense to fly it as understood and programmed. They did not double check with ATC. He was dismayed by the presentation of the SID graphic and the PDC nomenclature which allowed both pilots to review it and make incorrect assumptions. He was aware that the '.' (dot) between a SID name and an associated transition indicated a clearance to fly the transition. The lack of such a dot; however; further reinforced the interpretation of the space as an indicator to fly 'direct.' He noted that spaces between fixes in an enroute clearance are displayed in exactly that way; i.e. 'fix' (space) 'fix.'

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.