C172 instructor pilot reported they were unable to clear the runway as planned when the engine quit ...

Attributes
ACN	1494815
Time
Date	201711
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Component
Aircraft Component	Engine
Person 1
Function	Instructor Pilot Not Flying
Qualification	Flight Crew Flight Instructor Flight Crew Commercial Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 1030 Flight Crew Type 300
Events
Anomaly	Aircraft Equipment Problem Less Severe Ground Incursion Runway

Narrative:

After landing we were cleared to taxi off on [another runway]. As we were taxiing and power was at idle the low volts and low pressure annunciators popped up. Immediately; the RPM began to decrease from normal idle at 700 RPM to 300; and then to 0. [I] advised tower that we needed to restart on the runway; they asked if we were clear; I said yes; but then realized we had not yet cleared the hold short line. There was some confusion at first but we clarified with tower and they sent the other traffic in the pattern on a go around. We were then able to restart the engine and taxi off clear of both runways. In the end everyone did what was required to make it a safe and uneventful situation. We are working with the maintenance shop to prevent this [from] happening again; but other than communicating more clearly with tower there was nothing that could have been done differently.

Original NASA ASRS Text

Title: C172 instructor pilot reported they were unable to clear the runway as planned when the engine quit after landing.

Narrative: After landing we were cleared to taxi off on [another runway]. As we were taxiing and power was at idle the Low Volts and Low Pressure annunciators popped up. Immediately; the RPM began to decrease from normal idle at 700 RPM to 300; and then to 0. [I] advised Tower that we needed to restart on the runway; they asked if we were clear; I said yes; but then realized we had not yet cleared the hold short line. There was some confusion at first but we clarified with Tower and they sent the other traffic in the pattern on a go around. We were then able to restart the engine and taxi off clear of both runways. In the end everyone did what was required to make it a safe and uneventful situation. We are working with the maintenance shop to prevent this [from] happening again; but other than communicating more clearly with Tower there was nothing that could have been done differently.

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.