What was found
LONGITUDINAL OSCILLATIONS BEGAN CLIMBING THRU APPROX 26,000 FT FOR APPROX 30 SECONDS OSCILLATIONS RETURNED IN LEVEL CRUISE FLIGHT AT 33,000 WITH AUTOPILTO ON OR OFF. OSCILLATION STOPPED WHEN BEGAN DESCENT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LONGITUDINAL OSCILLATIONS BEGAN CLIMBING THRU APPROX 26,000 FT FOR APPROX 30 SECONDS OSCILLATIONS RETURNED IN LEVEL CRUISE FLIGHT AT 33,000 WITH AUTOPILTO ON OR OFF. OSCILLATION STOPPED WHEN BEGAN DESCENT.