Narrative:

Ogg changed its RNAV Z approach to go below the minimum vectoring altitudes. Once an aircraft is cleared on the RNAV Z; we are unable to vector them off the approach; due to the minimum vectoring altitudes being above the altitude of the approach. I was under the impression; and I was also told this on a recorded line by a controller at ogg that if an aircraft is on the RNAV Z; ogg tower would be responsible for separating any departing VFR aircraft from the inbound IFR aircraft on the RNAV Z approach. I asked if I need to call for each aircraft; and the ogg tower controller told me that as long as I type in 'rnz' into the scratch pad; ogg tower would handle the separation. Ogg tower typically climbs an aircraft southbound to stop at 1;000 feet; and the altitude on the RNAV Z descends to 1;800 feet. For a heavy IFR aircraft and a VFR aircraft; a minimum separation of 1;000 feet would be needed. I assumed; based on my conversation on the recorded line with ogg tower that they would handle whatever separation would be necessary with any VFR departing off the airport; since I am not made aware of any departing VFR aircraft. I believed this to be true for every aircraft. There was never an issue with VFR aircraft being a factor for my IFR inbound on the rnz until I had an inbound heavy aircraft X. I had cleared aircraft X for the RNAV Z approach; and I was unable to take aircraft X off the approach; since minimum vectoring altitudes are above the approach altitudes. Then; a VFR aircraft departed off ogg and was switched to me. I called on the shout line and asked what type of separation ogg tower was giving me with the VFR and my aircraft X on the RNAV Z approach. The ogg tower was unaware of any separation being necessary; and I told him about my conversation with a controller about how they would provide separation. The ogg tower controller denied any knowledge of this; and basically gave me an aircraft that would not be separated from my heavy on the RNAV Z approach. I told him to have his supervisor call my supervisor and work out something; because it is unacceptable that ogg tower will provide no separation for the RNAV Z approach. Either we make ogg tower separate their VFR traffic from our IFR inbounds on the RNAV Z; or we stop using the RNAV Z approach. If the approach was made that did not provide separation; then it was a very poor approach to implement. My question is do I keep using this approach? Do I stop using this approach?

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Original NASA ASRS Text

Title: A HCF Approach controller reported confusion with the Tower over a procedure to separate arriving IFR aircraft from VFR departures.

Narrative: OGG changed its RNAV Z Approach to go below the minimum vectoring altitudes. Once an aircraft is cleared on the RNAV Z; we are unable to vector them off the approach; due to the minimum vectoring altitudes being above the altitude of the approach. I was under the impression; and I was also told this on a recorded line by a controller at OGG that if an aircraft is on the RNAV Z; OGG Tower would be responsible for separating any departing VFR aircraft from the inbound IFR aircraft on the RNAV Z approach. I asked if I need to call for each aircraft; and the OGG Tower controller told me that as long as I type in 'RNZ' into the scratch pad; OGG Tower would handle the separation. OGG Tower typically climbs an aircraft southbound to stop at 1;000 feet; and the altitude on the RNAV Z descends to 1;800 feet. For a heavy IFR aircraft and a VFR aircraft; a minimum separation of 1;000 feet would be needed. I assumed; based on my conversation on the recorded line with OGG Tower that they would handle whatever separation would be necessary with any VFR departing off the airport; since I am not made aware of any departing VFR aircraft. I believed this to be true for every aircraft. There was never an issue with VFR aircraft being a factor for my IFR inbound on the RNZ until I had an inbound heavy Aircraft X. I had cleared Aircraft X for the RNAV Z approach; and I was unable to take Aircraft X off the approach; since minimum vectoring altitudes are above the approach altitudes. Then; a VFR aircraft departed off OGG and was switched to me. I called on the shout line and asked what type of separation OGG Tower was giving me with the VFR and my Aircraft X on the RNAV Z approach. The OGG Tower was unaware of any separation being necessary; and I told him about my conversation with a controller about how they would provide separation. The OGG Tower Controller denied any knowledge of this; and basically gave me an aircraft that would not be separated from my heavy on the RNAV Z approach. I told him to have his supervisor call my supervisor and work out something; because it is unacceptable that OGG Tower will provide no separation for the RNAV Z approach. Either we make OGG Tower separate their VFR traffic from our IFR inbounds on the RNAV Z; or we stop using the RNAV Z approach. If the approach was made that did not provide separation; then it was a very poor approach to implement. My question is do I keep using this approach? Do I stop using this approach?

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.