# Incident 19960514018549I: Boeing 7372H5, Trenton, NJ, May 14, 1996

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: May 14, 1996, 10:30 local time
- Place: Trenton, NJ
- Airport: Mercer County
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: Air carrier (Part 121)
- Operator: E9WA
- Location: 40.2238° N, 74.7636° W: Placed by OpenAirDocs: center of Trenton, NJ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.2238&lon=-74.7636&mi=10
- Aircraft: N221US, a cancelled registration (https://openairdocs.org/deregistered/N221US-2000-06-14) (OpenAirDocs)
- Registry model: Boeing 737-2H5 (registry code 138448E, https://openairdocs.org/model/boeing-737-2h5) (OpenAirDocs)
- Reported make and model: BOEING 7372H5
- People aboard: 102
- Fatal injuries: 0
- Pilot flight hours: 12,694 total, 580 in this make and model, 207 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19960514018549I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

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.

- [Incident 19930914038059I](https://openairdocs.org/incident/19930914038059I), Sep 14, 1993: Boeing 7372H5 (N221US), Syracuse, NY. NR1 engine overheat light on. Diverted to Syracuse. Found 13th stage duct clamp broken. Replaced clamp.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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