A Reporter noted that the Lampson Field (102) NACO departure procedure uses the decommissioned LOP NDB. Additionally; ACV has two ILS 32 approaches available; although one is an ILS OR LOC DME 32. Each ILS has a different Initial Approach Fix transition; which when cleared for either approach may create course and clearance confusion.
Synopsis
A Reporter noted that the Lampson Field (102) NACO departure procedure uses the decommissioned LOP NDB. Additionally; ACV has two ILS 32 approaches available; although one is an ILS OR LOC DME 32. Each ILS has a different Initial Approach Fix transition; which when cleared for either approach may create course and clearance confusion.
Narrative
This is not an event. This report serves to point out two ambiguities in IFR charting in Northern California; which could potentially be a hazard to flight safety. 1) Lakeport; CA: Lampson Field (1O2). The take-off minimums and departure procedures shows a departure procedure which requires the use of the LOP NDB (Lampson non-directional beacon); which no longer exists. The LOP NDB was decommissioned and no longer appears on any charts. There used to be a NOTAM stating this departure procedure was not authorized; but that has been removed. The airport now appears to have a valid departure procedure that references a nonexistent navigational source. 2) Arcata/Eureka; CA: Arcata Airport (ACV). There are two ILS approach procedures to this airport; with different feeder routes. There is an 'ILS 32' and an 'ILS OR LOC/DME 32' procedure. When cleared by ATC for an ILS approach; there is no distinction in terminology between the procedures. One of the approaches used to be called 'ILS DME 32 Approach' but that name has been changed; creating this ambiguity. If an aircraft is approaching FOT (the Fortuna VOR) and is cleared for the 'ILS 32 Approach;' it is unclear if the pilot should depart FOT on heading of 050 degrees to KNEES; or a heading of 034 degrees to KORBE.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.