S12 Service Bulletin Voltage Limiter for Fuel Pumps

P062-980084 | 7/25/2025

The voltage limiter is used in several variants of the Stemme S10 to avoid increased fuel pressure. It has been determined that no overpressure occurs in Stemme S12 variant aircrafts with the affected serial numbers. These aircraft do not have voltage limiters installed. If fuel overpressure should be displayed on the engine monitor during the future operation of these aircraft, the voltage limiters P/N 124604 should be installed as correction measure.