Narrative:

I was training on the radar on sector 3 and 4 combined. Aircraft Y had been issued weather and NOTAMS and was cleared to initial approach fix for an RNAV approach into iwd when aircraft X called for release off same airport. Aircraft Y distance from the field and speed allowed for use of 3 minute rule for nonradar departure separation; so he was issued a departure clearance and void time with almost 2 full extra minutes as a buffer.as aircraft Y approached the airport and not receiving initial call from aircraft X who mussed their void time and didn't respond to multiple attempted transmissions; had to can aircraft Y's approach clearance; climb him above mia; and vector him away from the airport. More attempts to communicate with aircraft X went unanswered. Finally aircraft X calls airborne; was identified; told of the weather and cleared on course from departure instructions and aircraft Y was recleared for the approach. Separation was never lost.issue departure clearance with a hold for release instruction. This is much less efficient; but eliminates chances for errors.

Google
 

Original NASA ASRS Text

Title: ZMP Controller report of having to cancel an approach clearance into an uncontrolled airport because of an IFR departure that had missed its void time. The Controllers did not have a loss of separation and recommended that they issue a hold for release in the future.

Narrative: I was training on the radar on Sector 3 and 4 combined. Aircraft Y had been issued weather and NOTAMS and was cleared to initial approach fix for an RNAV Approach into IWD when Aircraft X called for release off same airport. Aircraft Y distance from the field and speed allowed for use of 3 minute rule for nonradar departure separation; so he was issued a departure clearance and void time with almost 2 full extra minutes as a buffer.As Aircraft Y approached the airport and not receiving initial call from Aircraft X who mussed their void time and didn't respond to multiple attempted transmissions; had to can Aircraft Y's approach clearance; climb him above MIA; and vector him away from the airport. More attempts to communicate with Aircraft X went unanswered. Finally Aircraft X calls airborne; was identified; told of the weather and cleared on course from departure instructions and aircraft Y was recleared for the approach. Separation was never lost.Issue departure clearance with a hold for release instruction. This is much less efficient; but eliminates chances for errors.

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.