# Incident 19970408009119I: Boeing 737524, Cleveland, OH, April 8, 1997

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: April 8, 1997, 14:42 local time
- Place: Cleveland, OH
- Airport: Cleveland-Hopkins International
- Phase of flight: Normal Cruise
- Operating rules: Air carrier (Part 121)
- Operator: CALA
- Location: 41.4094° N, 81.8547° W: Placed by OpenAirDocs at CLEVELAND-HOPKINS INTL (CLE), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.4094&lon=-81.8547&mi=10
- Aircraft: N14613, a cancelled registration (https://openairdocs.org/deregistered/N14613-2012-08-13) (OpenAirDocs)
- Registry model: Boeing 737-524 (registry code 1384721, https://openairdocs.org/model/boeing-737-524) (OpenAirDocs)
- Registry engine: CFM International CFM56 series (registry code 13802, https://openairdocs.org/engine/cfm-international-cfm56-series) (OpenAirDocs)
- Reported make and model: BOEING 737524
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 10,000 total, 228 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970408009119I

## Narrative

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

NARRATIVE: AIRCRAFT WAS AT TOP OF CLIMB AND EXPERIENCED FIVE (5) UNCONTROLLED RUDDER KICKS (YAW) (2) LEFT (2) RIGHT AND THEN (1) LEFT. AUTOPILOT KICKED OFF BY THE FIRST SET OF YAWS. YAW DAMPER SW WAS TURNED OFF. REMAINDER OF FLT WAS NORMAL. EMERG. EQUIPMENT WAS CALLED OUT AND STANDING BY WITH NO FURTHER INCIDENT. MAINT. ACCOMPLISHED A BITE SYSTEM TEST ON YAW COUPLER, STEPS 1-4 FAILED. FOUND PINS 32 GND OPEN FROM COUPLER TO RUDDER PCU.

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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