What was found
WHEN GOING FROM ON THE ALTIMETER UNIT SHUTS OFF. REPLACED SWITCH ASSY. REPAIRED. ALSO REPLACED RESISTOR R477, FACEPLATE. ADJUSTED FREQUENCY. BENCH CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN GOING FROM ON THE ALTIMETER UNIT SHUTS OFF. REPLACED SWITCH ASSY. REPAIRED. ALSO REPLACED RESISTOR R477, FACEPLATE. ADJUSTED FREQUENCY. BENCH CHECK GOOD.