What was found
AFTER TAKEOFF LEFT MAIN GEAR DID NOT RETRACT, CYCLED GEAR SECOND TIME GEAR CAME UP, NOTED VIBRATION IN AC AND BOTH RED LIGHTS ON PANEL AND GEAR LEVER ON. MAINTENANCE REPLACED PTU AND GEAR SELECT VALVE, OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER TAKEOFF LEFT MAIN GEAR DID NOT RETRACT, CYCLED GEAR SECOND TIME GEAR CAME UP, NOTED VIBRATION IN AC AND BOTH RED LIGHTS ON PANEL AND GEAR LEVER ON. MAINTENANCE REPLACED PTU AND GEAR SELECT VALVE, OPS CHECK GOOD.