First officer reported confusion regarding an altitude on the STAR and the altitude at the same loca...

Attributes
ACN	1714025
Time
Date	201912
Local Time Of Day	0001-0600
Place
Locale Reference	MMFR.ARTCC
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Large Transport
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	Direct STAR ENEKO1B
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Private Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial
Experience	Flight Crew Last 90 Days 130 Flight Crew Total 2631 Flight Crew Type 2380
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

While cleared for the ENEKO1B STAR at cabo; we set 4;000 ft in the altitude window as shown at avuru. We then heard another flight in front of us only descending to 10;000 feet which is shown at dawson. We then queried the controller to clarify the altitude we were cleared down to while flying this specific STAR; and they said 10;000 ft. This is very confusing to aircrew when 4;000 ft. Is shown at avuru on this specific STAR. We could easily have been violated had we not queried the controller. Either the STAR needs to depict this 10;000 ft. Restriction as the final altitude; or it needs to be written in the STAR that aircraft must stop their descent at 10;000 ft.; or controllers need to clearly state that you are cleared for the ENEKO1B; but only down to 10;000 ft.

Original NASA ASRS Text

Title: First Officer reported confusion regarding an altitude on the STAR and the altitude at the same location given to the preceding aircraft.

Narrative: While cleared for the ENEKO1B STAR at Cabo; we set 4;000 ft in the altitude window as shown at AVURU. We then heard another flight in front of us only descending to 10;000 feet which is shown at Dawson. We then queried the Controller to clarify the altitude we were cleared down to while flying this specific STAR; and they said 10;000 ft. This is very confusing to aircrew when 4;000 ft. is shown at AVURU on this specific STAR. We could easily have been violated had we not queried the Controller. Either the STAR needs to depict this 10;000 ft. restriction as the final altitude; or it needs to be written in the STAR that aircraft must stop their descent at 10;000 ft.; or Controllers need to clearly state that you are cleared for the ENEKO1B; but only down to 10;000 ft.

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.

First officer reported confusion regarding an altitude on the STAR and the altitude at the same location given to the preceding aircraft.