What was found
(CAN) TACH BOX CYCLED BLEED VALVE OPEN AND CLOSED A COUPLE OF TIMES BEFORE STAYING OPEN. THIS HAPPENED SPORADICALLY AND AT LOW ALTITUDE, COULD NOT GET FULL POWER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) TACH BOX CYCLED BLEED VALVE OPEN AND CLOSED A COUPLE OF TIMES BEFORE STAYING OPEN. THIS HAPPENED SPORADICALLY AND AT LOW ALTITUDE, COULD NOT GET FULL POWER.