Beechcraft G35 N4647D
7 October 2005 · Longview, Washington, United States · No injuries
Summary
On 7 October 2005 at about 21:00 local time, a Beechcraft G35 registered N4647D was involved in an accident near Longview, Washington, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 21:00
- Classification
- Accident
- Location
- Longview, Washington, United States
- Coordinates
- 46.1631, -122.9486
- Aircraft
- Beechcraft G35
- Registration
- N4647D
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Oak Harbor → Eugene
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA06LA004
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
Ruddervator flutter which resulted in the buckling of the empennage. The reason for the ruddervator flutter was undetermined.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot was descending from 9,500 feet for weather, and while maneuvering around a cloud cell at 8,000 feet the airplane began to vibrate. He reduced power and rate of descent, and continued to his destination. After a normal landing, he discovered the "serious wrinkling" between the fuselage and the empennage. Postaccident evaluation of the airplane found no pre-existing cracking in the engine mounts; engine vibration analysis results were within limits. Ruddervator balance tests were also within limits. Radar data indicated that the airplane's maximum ground-track speed was 185 knots, or 213 mph. When this was corrected for altitude and winds aloft, the Investigator In Charge determined that the airplane's indicated airspeed should have been approximately 190 mph when it was descending through 8,000 feet. The airplane's Pilot's Operating Handbook (POH) states that this speed is in the airspeed indicator's yellow arc, or between 176 and 202 mph. The POH further states that maximum structural cruising speed (Vno) is 176 mph, and remarks, "Do not exceed this speed except in smooth air and then only with caution."
Quoted verbatim from the NTSB record.
Other Beechcraft G35 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 1 Jan 2005 | Beechcraft G35 | Falmouth, Massachusetts, United States | - | No injuries | - |
| 2 Mar 2006 | Beechcraft G35 | Flagstaff, Arizona, United States | - | No injuries | - |
| 21 Nov 2003 | Beechcraft G35 | Okolona, Mississippi, United States | - | Fatal | 3 |
| 7 Oct 2007 | Beechcraft G35 | Lexington, South Carolina, United States | Thomas L Clark | No injuries | - |
| 6 Sep 2008 | Beechcraft G35 | Knoxville, Tennessee, United States | Brown David G | No injuries | - |
| 30 Dec 2008 | Beechcraft G35 | Chattanooga, Tennessee, United States | James W. Roberts, Jr. | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 8 Apr 2005 | Stinson 10-A | Oak Harbor, Washington, United States | - | Fatal | 2 |
| 9 Sep 2005 | North American AT-6D | Chehalis, Washington, United States | - | No injuries | - |
| 5 Aug 2005 | Cessna 150M | Renton, Washington, United States | - | Fatal | 2 |
| 5 Jul 2005 | Bell 47G-2A | Oroville, Washington, United States | - | No injuries | - |
| 4 Aug 2005 | Cessna 172M | Hoquiam, Washington, United States | - | No injuries | - |
| 14 Oct 2005 | North Wing APACHE ST TRIKE | Medical Lake, Washington, United States | - | Serious injuries | - |