What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Flight 2473 was climbing through 6000 feet from Pittsburgh international airport. The crew noticed smoke coming from the GP-300 auto-pilot. ATC was contacted with the problem and crew elected to return to pit. No emergency was declared. Maintenance personnel from psa discovered that the VASI button on the GP-300 was stuck in the "on" position. The GP-300 was replaced and the aircraft was returned to service. The pilots actions or lack of actions did not contribute to this incident. Submission of this report closes this incident.
As the FAA filed it
(-23) FLIGHT 2473 WAS CLIMBING THROUGH 6000 FEET FROM PITTSBURGH INTERNATIONAL AIRPORT. THE CREW NOTICED SMOKE COMING FROM THE GP-300 AUTO-PILOT. ATC WAS CONTACTED WITH THE PROBLEM AND CREW ELECTED TO RETURN TO PIT. NO EMERGENCY WAS DECLARED. MAINTENANCE PERSONNEL FROM PSA DISCOVERED THAT THE VASI BUTTON ON THE GP-300 WAS STUCK IN THE "ON" POSITION. THE GP-300 WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. THE PILOTS ACTIONS OR LACK OF ACTIONS DID NOT CONTRIBUTE TO THIS INCIDENT. SUBMISSION OF THIS REPORT CLOSES THIS INCIDENT.