What was found
LEFT ENGINE SOUNDED LIKE IT CYCLED THROUGH AN AUTOFEATHER, INCREASED POWER AND CONDITION CEASED, LANDED WITHOUT INCIDENT. PERFORMED GROUND RUN-UP, COULD NOT DUPLICATE, RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT ENGINE SOUNDED LIKE IT CYCLED THROUGH AN AUTOFEATHER, INCREASED POWER AND CONDITION CEASED, LANDED WITHOUT INCIDENT. PERFORMED GROUND RUN-UP, COULD NOT DUPLICATE, RETURNED TO SERVICE.