Aero Commander 690 N690TR
21 October 2009 · Cedar City, Utah, United States · No injuries
Summary
On 21 October 2009 at about 16:15 local time, a Aero Commander 690 registered N690TR, operated by Kolob Canyons Air Services L L C, was involved in an accident near Cedar City, Utah, 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 16:15
- Classification
- Accident
- Location
- Cedar City, Utah, United States
- Nearest airport
- Cedar City Regional (CDC)
- Coordinates
- 37.7011, -113.1517
- Aircraft
- Aero Commander 690
- Registration
- N690TR
- Category
- Airplane
- Engines
- 2
- Operator
- Kolob Canyons Air Services L L C
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Positioning
- Phase of flight
- Not recorded
- Route
- Cedar City → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- WPR10LA034
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
The failure of the landing gear accumulator/regulator and the installation of the improper priority valve, which precluded the landing gear from extending and locking into place.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
Upon arrival over the destination airport during a positioning flight, the pilot attempted to extend the airplane's landing gear. Only the nose gear and the left main landing gear locked in the down position. The pilot reported that he performed the emergency gear extension procedure specified in the airplane's flight manual, but the right main gear did not lock down. The pilot returned to the departure airport and landed. During rollout, the right main landing gear collapsed and the airplane slid off the runway resulting in substantial airframe damage. An examination of the airplane revealed that an accumulator/regulator in the extension system had malfunctioned. In addition, an incorrect priority valve was installed and precluded the gear from locking down.
Quoted verbatim from the NTSB record.
Other Aero Commander 690 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 30 May 2008 | Aero Commander 690A | Tacoma, Washington, United States | Thomas D Klemans | No injuries | - |
| 29 Jul 2006 | Aero Commander 690A | Anchorage, Alaska, United States | - | Fatal | 3 |
| 15 Oct 2006 | Aero Commander 690A | Antlers, Oklahoma, United States | - | Fatal | 4 |
| 4 Jan 2005 | Aero Commander 690A | Cleveland, Ohio, United States | - | No injuries | - |
| 16 Sep 2003 | Aero Commander 690 | Soto La Marina, Mexico | MGS Corporation | Fatal | 1 |
| 3 Mar 2003 | Aero Commander 690A | Tracy, California, United States | - | Serious injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 9 Dec 2009 | Beechcraft 35-33 | Lehi, Utah, United States | Mark Dwayne Thorn | Serious injuries | - |
| 20 Apr 2009 | Cessna T210L | Moab, Utah, United States | Arrow West Aviation Inc | No injuries | - |
| 21 Feb 2009 | Piper PA-22-160 | Ogden, Utah, United States | Carl William Shepard | No injuries | - |
| 24 Oct 2009 | Golden Circle TIERRA I | Jensen, Utah, United States | Kerry S. Crofts | No injuries | - |
| 25 Apr 2009 | Lockheed P2V-7 | Stockton, Utah, United States | Neptune Aviation Services Inc | Fatal | 3 |
| 3 Mar 2009 | Stephenson ZODIAC 601 XL | Antelope Island, Utah, United States | Kirk Babbitt | Fatal | 1 |