What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: on 05/14/96 flight 411 took off from Trenton-Mercer County Airport (ttn) en route to bos. After levelling at 10,000 ft. and within 12-15 minutes the flight crew reported a slight uncommanded yaw to the right approximately 20-30 seconds. The flight crew described the experience as "like someone gave a quiet stab at the rudder pedal - slight but noticeable, more of a thump than a yaw". The rudder pedals remained stationary. The thumps occurred five times and appeared to happen while turning the aircraft into right banks. No reported injuries to flight crew or passengers. The flight returned to ttn and landed without incident. During the inspection there appeared to be no damage to the aircraft. The flight crew stated that they accomplished the abnormality check list in which they turned off the autopilot and yaw dampener in flight during the incident. It was noted that this procedure had no effect on the defective rudder system. The above incident has been forwarded to the cmo and NTSB for further investigation. This reporting FSDO considers this matter closed.
As the FAA filed it
NARRATIVE: ON 05/14/96 FLIGHT 411 TOOK OFF FROM TRENTON-MERCER COUNTY AIRPORT (TTN) EN ROUTE TO BOS. AFTER LEVELLING AT 10,000 FT. AND WITHIN 12-15 MINUTES THE FLIGHT CREW REPORTED A SLIGHT UNCOMMANDED YAW TO THE RIGHT APPROXIMATELY 20-30 SECONDS. THE FLIGHT CREW DESCRIBED THE EXPERIENCE AS "LIKE SOMEONE GAVE A QUIET STAB AT THE RUDDER PEDAL - SLIGHT BUT NOTICEABLE, MORE OF A THUMP THAN A YAW". THE RUDDER PEDALS REMAINED STATIONARY. THE THUMPS OCCURRED FIVE TIMES AND APPEARED TO HAPPEN WHILE TURNING THE AIRCRAFT INTO RIGHT BANKS. NO REPORTED INJURIES TO FLIGHT CREW OR PASSENGERS. THE FLIGHT RETURNED TO TTN AND LANDED WITHOUT INCIDENT. DURING THE INSPECTION THERE APPEARED TO BE NO DAMAGE TO THE AIRCRAFT. THE FLIGHT CREW STATED THAT THEY ACCOMPLISHED THE ABNORMALITY CHECK LIST IN WHICH THEY TURNED OFF THE AUTOPILOT AND YAW DAMPENER IN FLIGHT DURING THE INCIDENT. IT WAS NOTED THAT THIS PROCEDURE HAD NO EFFECT ON THE DEFECTIVE RUDDER SYSTEM. THE ABOVE INCIDENT HAS BEEN FORWARDED TO THE CMO AND NTSB FOR FURTHER INVESTIGATION. THIS REPORTING FSDO CONSIDERS THIS MATTER CLOSED.
Other reports on N221US · 1
Matched to the same aircraft by N-number and date.