# Accident 20020701016249A: Beech G35, Yakima, WA, July 1, 2002

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 1, 2002, 12:00 local time
- Place: Yakima, WA
- Airport: Yakima Air Terminal
- Damage: No damage
- Operating rules: General operating rules (Part 91)
- Location: 46.5909° N, 120.5494° W: Placed by OpenAirDocs: center of Yakima, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.5909&lon=-120.5494&mi=10
- Aircraft: N4647D, registered now (https://openairdocs.org/aircraft/N4647D) (OpenAirDocs)
- Registry model: Beech G35 (registry code 1151516, https://openairdocs.org/model/beech-g35) (OpenAirDocs)
- Registry engine: Continental E225 series (registry code 17015, https://openairdocs.org/engine/continental-e225-series) (OpenAirDocs)
- Reported make and model: BEECH G35
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20020701016249A

## Narrative

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

(-23) PILOT JOHN COSMAN II AND WIFE JANE WERE TRANSITIONING INTO THE YKM AIRPORT AT 5000 MSL WITH CLEARANCE TO LAND WHILE CROSSING THE LAST RIDGE WHEN THE AIRCRAFT STARTED TO SHAKE/FLUTTER VIOLENTLY. PILOT JOHN COSMAN REDUCED POWER AND PULLED THE NOSE UP. THE SHAKING/VIBRATION STOPPED. REVIEW OF AIRCRAFT REVEALED A ONE TIME STRUCTURAL OVERLOAD OF THE REAR EMPENNAGE STRUCTURE JUST AHEAD OF THE 256 BULKHEAD. THE FUSELAGE BENT TORTIONALLY DOWN AND TO THE RIGHT SUFFICIENTLY TO BEND FUSELAGE LONGERONS, TEAR SKIN AWAY FROM RIVETS, AND CRACK SIDE SKIN. NO BULKHEAD WAS DAMAGED. THE RUDDERVATORS WERE CHECKED FOR BALANCE AND WERE WELL WITHIN BALANCE SPECIFICATIONS. IT WAS NOT POSSIBLE TO VERIFY CABLE TENSIONS. THE RECORDS INDICATE A WELL MAINTAINED AIRCRAFT WITH NO ISSUES IN RELATION TO THIS ACCIDENT. (OTHER) THIS AIRCRAFT MET TYPE DESIGN AT THE TIME OF THE INCIDENT. NTAP REPORTS SHOW IT WAS BEING FLOWN WITHIN THE SCOPE OF ITS NORMAL FLIGHT ENVELOPE. OTHER AIRCRAFT OF THIS DESIGN HAVE ALSO EXPERIENCED ONE TIME TURBULENCE DAMAGE LIKE THIS AIRCRAFT. A SAFETY RECOMMENDATION WILL BE WRITTEN ON THIS AIRCRAFT SERIES.

## NTSB investigation

None matched to this report by aircraft and date. Search the NTSB's own records: https://data.ntsb.gov/carol-main-public/basic-search

## Other reports on N4647D (3)

Matched to the same aircraft by N-number and date.

- [Accident 20051007025929A](https://openairdocs.org/incident/20051007025929A), Oct 7, 2005: Beech G35 (N4647D), Eugene, OR, Substantial damage. (-23) The pilot [privacy data omitted] states he was descending at 180MPH into portland, Oregon (pdx) airspace at 8000' AGL when he experienced a sudden and…
- [Incident 19790608015769I](https://openairdocs.org/incident/19790608015769I), Jun 8, 1979: Beech G35 (N4647D), Waukesha, WI, Minor damage. Pilot intended to retract flaps after touchdown. Got the wrong switch
- [Accident 19731006034269A](https://openairdocs.org/incident/19731006034269A), Oct 6, 1973: Beech G35 (N4647D), Manitowish W, WI, Substantial damage. Plt did not allow time for gear to fully extend. Push pull rod failed aft end,ldg gr housing dmgd.

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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