Narrative:

During preflight at dtw; our flight plan route was as follows 'dunks.J70.pmm...' our pre departure clearance said cleared palace 7 departure; so we loaded the palace 7. When doing the route/legs check; I noticed that the waypoint 'alphe' was not in the box but it was on the flight plan legs page as a point between dunks and pmm. Crosschecking the palace 7 departure also did not show a point called alphe; but instead showed a point called 'lessy.' we called clearance delivery to clarify; and he indicated that he had come across this issue before; that lessy and alphe were about 1.5 miles apart; both along J70; but that if we removed the palace 7 departure; that alphe would no longer be displayed in our legs page. Since we were cleared for the palace 7; we elected to leave it in the box and I just entered lessy in the fix page.after takeoff; ATC eventually cleared us direct alphe; on course. To summarize: the flight plan showed 'dunks - J70 - pmm' the palace 7 shows 'dunks - lessy - pmm' along J709. The legs page after entering the palace 7 showed 'dunks - alphe - pmm.' the high chart said 'dunks - J709 - pmm' with no waypoints between dunks and pmm. The low chart showed dunks - lessy - etc. - Pmm' along V170; with no 'alphe.' so; we could not find the fix 'alphe' on the palace 7; high or low charts; but it is in the FMS database as well as a fix that ATC cleared us to. How are supposed to navigate to an uncharted fix? This was very confusing and I don't think it is a good idea to have ATC assign a fix or have a fix on the flight plan legs that we cannot find on a chart. Perhaps jeppesen or ATC can add the fix to the charts if they are going to use them; or a note on a 10-7 page would help alleviate the confusion?

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Original NASA ASRS Text

Title: A B737NG pilot discovered after entering the PALACE 7 Departure during preflight; that departure waypoint LESSY was replaced by high altitude airway waypoint ALPHE; approximately 1.8 NM prior it. Both waypoints are on J70 but LESSY is a departure waypoint while ALPHE is a J70/J34 intersection.

Narrative: During preflight at DTW; our flight plan route was as follows 'DUNKS.J70.PMM...' our PDC said cleared PALACE 7 Departure; so we loaded the PALACE 7. When doing the Route/Legs check; I noticed that the waypoint 'ALPHE' was not in the box but it was on the flight plan Legs page as a point between DUNKS and PMM. Crosschecking the PALACE 7 Departure also did not show a point called ALPHE; but instead showed a point called 'LESSY.' We called Clearance Delivery to clarify; and he indicated that he had come across this issue before; that LESSY and ALPHE were about 1.5 miles apart; both along J70; but that if we removed the PALACE 7 Departure; that ALPHE would no longer be displayed in our legs page. Since we were cleared for the PALACE 7; we elected to leave it in the box and I just entered LESSY in the fix page.After takeoff; ATC eventually cleared us direct ALPHE; on course. To summarize: the flight plan showed 'DUNKS - J70 - PMM' the PALACE 7 shows 'DUNKS - LESSY - PMM' along J709. The legs page after entering the PALACE 7 showed 'DUNKS - ALPHE - PMM.' The High Chart said 'DUNKS - J709 - PMM' with no waypoints between DUNKS and PMM. The Low Chart showed DUNKS - LESSY - etc. - PMM' along V170; with no 'ALPHE.' So; we could not find the fix 'ALPHE' on the PALACE 7; High or Low charts; but it is in the FMS database as well as a fix that ATC cleared us to. How are supposed to navigate to an uncharted fix? This was very confusing and I don't think it is a good idea to have ATC assign a fix or have a fix on the flight plan legs that we cannot find on a chart. Perhaps Jeppesen or ATC can add the fix to the charts if they are going to use them; or a note on a 10-7 page would help alleviate the confusion?

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.