Air Tractor AT-302 N4441S
16 November 1990 · Somerton, Arizona, United States · No injuries
Summary
On 16 November 1990 at about 03:30 local time, a Air Tractor AT-302 registered N4441S, operated by Kottenbrook, Jeffrey L., was involved in an accident near Somerton, Arizona, 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 03:30
- Classification
- Accident
- Location
- Somerton, Arizona, United States
- Coordinates
- 32.5305, -114.7108
- Aircraft
- Air Tractor AT-302
- Registration
- N4441S
- Category
- Airplane
- Engines
- 1
- Operator
- Kottenbrook, Jeffrey L.
- Operating rule
- Part 137: Agricultural
- Purpose of flight
- Aerial Application
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Night/Dark
- NTSB number
- LAX91DUJ03
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
THE FAILURE OF THE NUMBER 3 EXHAUST VALVE WHICH LED TO AN ENGINE FAILURE AND SUBSEQUENT CRASH LANDING.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE PILOT EXPERIENCED A LOSS OF ENGINE POWER AND COLLIDED WITH THE TERRAIN DURING A SWATH RUN. EXAMINATION OF THE ENGINE REVEALED THE NUMBER 3 EXHAUST VALVE WAS CRACKED. THE ENGINE HAD 266 HOURS SINCE OVERHAUL AND HAD 20 HOURS SINCE THE LAST INSPECTION.
Quoted verbatim from the NTSB record.
Other Air Tractor AT-302 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 11 Feb 1987 | Air Tractor AT-302 | Colony, Oklahoma, United States | Allin Lawerence | Serious injuries | - |
| 19 Aug 1981 | Air Tractor AT-302 | Phoenix, Arizona, United States | San TAN Duster | Fatal | 1 |
| 13 Sep 2002 | Air Tractor AT-302 | Lacompte, Louisiana, United States | M & J Flying Service LLC | Minor injuries | - |
| 9 May 2013 | Air Tractor AT-302 | Winnie, Texas, United States | Airborn AG Services | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 24 Apr 1990 | Piper PA-28-161 | Chandler, Arizona, United States | Chandler Air Service | No injuries | - |
| 26 Apr 1990 | Cessna 120 | Phoenix, Arizona, United States | James R. Ohlin | No injuries | - |
| 7 Jun 1990 | Bellanca 8KCAB | Phoenix, Arizona, United States | Kindel, Charles E. | Fatal | 1 |
| 24 Oct 1990 | Beechcraft F33A | Mobile, Arizona, United States | - | Minor injuries | - |
| 30 Apr 1990 | Cessna 182L | Bullhead City, Arizona, United States | Unregistered | No injuries | - |
| 1 May 1990 | Piper PA30 | Sedona, Arizona, United States | Haaf, TOM | No injuries | - |