What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On may 28, 1999, N621BR, a Canadair model CL-600-2B 19 aircraft experienced a jolt/turbulance like vibration during climb out, followed by another one and followed by a smoke cargo eicas message. The aircraft was en-route from ord to sgf as atlantic coast airlines' (united express) flight 7835. The pilot followed procedures, declared an emergency and started a return to ord. While en-route to ord, the aircraft started to experience rudder vibrations. After descending to 11,000 feet, and taking the auto pilot off, the aircraft experienced a sudden left wing down. The pilot decided to land a arr. When adding power to level off in the downwind, the aircraft experienced more rudder vibrations and slight roll type feeling in the ailerons. The aircraft landed without further incident followed by an emergency evacuation. Maintenance inspected the cargo compartment and found no evidence of smoke or fire. The smoke detection system was inspected with no defects noted. Maintenance replaced the expended cargo compartment fire extinguisher bottles. Maintenance also inspected the rudder control system and found no discrepancies. The flight data recorder was downloaded and analyzed. There were no abnormal indications.
As the FAA filed it
ON MAY 28, 1999, N621BR, A CANADAIR MODEL CL-600-2B 19 AIRCRAFT EXPERIENCED A JOLT/TURBULANCE LIKE VIBRATION DURING CLIMB OUT, FOLLOWED BY ANOTHER ONE AND FOLLOWED BY A SMOKE CARGO EICAS MESSAGE. THE AIRCRAFT WAS EN-ROUTE FROM ORD TO SGF AS ATLANTIC COAST AIRLINES' (UNITED EXPRESS) FLIGHT 7835. THE PILOT FOLLOWED PROCEDURES, DECLARED AN EMERGENCY AND STARTED A RETURN TO ORD. WHILE EN-ROUTE TO ORD, THE AIRCRAFT STARTED TO EXPERIENCE RUDDER VIBRATIONS. AFTER DESCENDING TO 11,000 FEET, AND TAKING THE AUTO PILOT OFF, THE AIRCRAFT EXPERIENCED A SUDDEN LEFT WING DOWN. THE PILOT DECIDED TO LAND A ARR. WHEN ADDING POWER TO LEVEL OFF IN THE DOWNWIND, THE AIRCRAFT EXPERIENCED MORE RUDDER VIBRATIONS AND SLIGHT ROLL TYPE FEELING IN THE AILERONS. THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT FOLLOWED BY AN EMERGENCY EVACUATION. MAINTENANCE INSPECTED THE CARGO COMPARTMENT AND FOUND NO EVIDENCE OF SMOKE OR FIRE. THE SMOKE DETECTION SYSTEM WAS INSPECTED WITH NO DEFECTS NOTED. MAINTENANCE REPLACED THE EXPENDED CARGO COMPARTMENT FIRE EXTINGUISHER BOTTLES. MAINTENANCE ALSO INSPECTED THE RUDDER CONTROL SYSTEM AND FOUND NO DISCREPANCIES. THE FLIGHT DATA RECORDER WAS DOWNLOADED AND ANALYZED. THERE WERE NO ABNORMAL INDICATIONS.