Aero Commander 690A N706KC
26 August 1993 · Bishop, California, United States · No injuries
Summary
On 26 August 1993 at about 21:30 local time, a Aero Commander 690A registered N706KC, operated by Medic Air Inc., was involved in an accident near Bishop, California, United States. 2 people were 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 21:30
- Classification
- Accident
- Location
- Bishop, California, United States
- Coordinates
- 37.5000, -118.3099
- Aircraft
- Aero Commander 690A
- Registration
- N706KC
- Category
- Airplane
- Engines
- 2
- Operator
- Medic Air Inc.
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Reno → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX93FA333
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
a loss of control and upset due to an inadequate adjustment of the ailerons and aileron trim tab by company maintenance personnel that resulted in a partial failure of the right horizontal stabilizer.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
A TWIN ENGINE TURBOPROP AIRPLANE WAS DESCENDING THROUGH 16,500 FEET AT 205 KNOTS WHEN THE AIRPLANE BEGAN AN UNCOMMANDED 360- DEGREE RIGHT ROLL. THE PILOT REGAINED CONTROL OF THE AIRPLANE AND CONTINUED HIS DESCENT AND LANDED. AFTER LANDING, THE PILOT FOUND THAT THE OUTBOARD HALF OF THE RIGHT HORIZONTAL STABILIZER HAD BROKEN, FOLDING UP AND AFT 180 DEGREES OVER THE UPPER SURFACE OF THE STABILIZER. THE FAILURE OF THE STABILIZER WAS ATTRIBUTED TO OVERLOAD. METEOROLOGICAL CONDITIONS WERE DESCRIBED AS A LIGHT-TO-MODERATE CHOP. EXAMINATION OF THE AIRPLANE REVEALED OVERTRAVEL OF THE ELEVATORS AND AILERONS. NO OTHER STRUCTURAL DAMAGE WAS FOUND. THE AILERONS AND AILERON TRIM TAB WERE OUT OF ADJUSTMENT.
Quoted verbatim from the NTSB record.
Other Aero Commander 690 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 27 Sep 1993 | Aero Commander 690A | Lansing, Michigan, United States | Midwest Flying Service, Inc. | Fatal | 2 |
| 8 Oct 1994 | Aero Commander 690B | Springfield, Missouri, United States | - | Fatal | 1 |
| 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 | - |
| 15 Oct 1996 | Aero Commander 690 | Phoenix, Arizona, United States | Sun West Aviation | No injuries | - |
| 1 Dec 1990 | Aero Commander 690A | Ryderwood, Washington, United States | Aero Air | Fatal | 5 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 26 Jul 1993 | Cessna 310H | Lancaster, California, United States | Yehiem Konski | Fatal | 6 |
| 14 Nov 1993 | Cessna 182 | Colusa, California, United States | - | No injuries | - |
| 20 Jan 1993 | Cessna 172P | Sun City, California, United States | Hiser Helicopters, Inc. | Fatal | 1 |
| 31 Jul 1993 | Robinson R44 | El Monte, California, United States | Benjamin F. Venti, SR. | Fatal | 3 |
| 17 Nov 1993 | Piper PA-38-112 | Fresno, California, United States | - | No injuries | - |
| 21 Jan 1993 | Beechcraft A35 | Tulare, California, United States | Rent and Lease Programs | Fatal | 2 |