Aero Commander 690A N400N
1 December 1990 · Ryderwood, Washington, United States · Fatal
Summary
On 1 December 1990 at about 02:41 local time, a Aero Commander 690A registered N400N, operated by Aero Air, was involved in an accident near Ryderwood, Washington, United States. 6 people were on board and 5 died, one was seriously injured. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 02:41
- Classification
- Accident
- Location
- Ryderwood, Washington, United States
- Coordinates
- 46.3592, -123.0694
- Aircraft
- Aero Commander 690A
- Registration
- N400N
- Category
- Airplane
- Engines
- 2
- Operator
- Aero Air
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Unknown → Kelso
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Night/Dark
- NTSB number
- SEA91FA027
People
5 people died.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 6 | 5 | 1 | 0 | 0 |
Probable cause
THE PILOT'S IMPROPER INFLIGHT PLANNING AND FAILURE TO MAINTAIN PROPER ALTITUDE IN MOUNTAINOUS TERRAIN AT NIGHT.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
AS THE FLT WAS APCHG THE DESTN, AT NGT, THE PLT OBTAINED VECTORS FOR A DSCNT OVER MOUNTAINOUS TERRAIN. DURING THE APCH, HE CANCELLED THE IFR FLT PLAN & THE ACFT DSNDD BELOW RADAR COVERAGE. SUBSEQUENTLY, THE ACFT CRASHED IN MOUNTAINOUS TERRAIN, NORTHWEST OF THE DESTN ARPT. IMPACT OCCURRED IN A WOODED AREA AT AN ELEVATION OF ABOUT 2700 FT. THE ELT DID NOT ACTIVATE DURING THE ACDNT. A SEARCH WAS INITIATED ON 12/1/90, BUT THE ACFT & SURVIVING PASSENGER WERE NOT FND UNTIL THE NEXT DAY. THE CANADIAN ATP PLT & OTHER 4 PASSENGERS WERE FATALLY INJURED. AFTER INITIAL IMPACT WITH TREES, THE MAIN PORTION OF THE FUSELAGE TRAVELED ABOUT 1000 FT BEFORE COMING TO REST. NO PREIMPACT MECHANICAL PROBLEM WAS FOUND.
Quoted verbatim from the NTSB record.
Other Aero Commander 690 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 16 Nov 1990 | Aero Commander 690A | Montgomery, Alabama, United States | Alabama Dept. of Aeronautics | No injuries | - |
| 14 Dec 1991 | Aero Commander 690A | Roseau, Minnesota, United States | Amsair Inc | No injuries | - |
| 24 May 1991 | Aero Commander 690C | Denver, Colorado, United States | Casper Air Service | No injuries | - |
| 17 May 1988 | Aero Commander 690A | Little Rock, Arkansas, United States | - | Fatal | 1 |
| 26 Aug 1993 | Aero Commander 690A | Bishop, California, United States | Medic Air Inc. | No injuries | - |
| 2 Sep 1987 | Aero Commander 690 | Appleton, Wisconsin, United States | Maxair | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 9 Jan 1990 | Cessna 177B | Friday Harbor, Washington, United States | - | No injuries | - |
| 4 Feb 1990 | Bell 206B | Winthrop, Washington, United States | - | No injuries | - |
| 1 Mar 1990 | Bell BH-47G3B2 | Des Moines, Washington, United States | Richard H. Butz | Minor injuries | - |
| 25 Feb 1990 | Cessna 140 | Vancouver, Washington, United States | Bogar, Floyd | No injuries | - |
| 12 Mar 1990 | Cessna 150J | Graham, Washington, United States | - | No injuries | - |
| 12 Mar 1990 | Bell 206 | Cougar, Washington, United States | Bluebird Helicopter | No injuries | - |