Grumman-Schweizer G-164A N7869
7 July 1999 · New Plymouth, Idaho, United States · No injuries
Summary
On 7 July 1999 at about 01:30 local time, a Grumman-Schweizer G-164A registered N7869 was involved in an accident near New Plymouth, Idaho, 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 01:30
- Classification
- Accident
- Location
- New Plymouth, Idaho, United States
- Coordinates
- 43.9406, -116.7996
- Aircraft
- Grumman-Schweizer G-164A
- Registration
- N7869
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 137: Agricultural
- Purpose of flight
- Aerial Application
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA99LA107
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
Loss of engine power due to failure of the supercharger impeller. A contributing factor was the ditch.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
Immediately after takeoff the pilot sensed a loss of engine performance and attempted to return to the departure airstrip. Unable to maintain altitude, he dumped the chemical load and then initiated a forced landing to an agricultural (sugar beet) field. The pilot was unable to stop the aircraft before reaching an irrigation ditch and impacted the upsloping terrain at the ditch's opposite side. Partial disassembly of the engine revealed that a gear tooth from the engine's supercharger blower section had broken off and was found in the blower drive section.
Quoted verbatim from the NTSB record.
Other Grumman-Schweizer G-164A accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 27 May 1999 | Grumman-Schweizer G-164A | Prescott, Washington, United States | - | No injuries | - |
| 3 Sep 1999 | Grumman-Schweizer G-164A | Seminole, Texas, United States | J.r. Davis Flying Service | Minor injuries | - |
| 4 Aug 1998 | Grumman-Schweizer G-164A | La Moure, North Dakota, United States | - | No injuries | - |
| 14 Mar 1998 | Grumman-Schweizer G-164A | Marianna, Florida, United States | Steve Odom | Minor injuries | - |
| 13 Mar 2000 | Grumman-Schweizer G-164A | Gillett, Arkansas, United States | - | No injuries | - |
| 6 Jun 1998 | Grumman-Schweizer G-164A | Lazbuddie, Texas, United States | Russell Spraying, Inc. | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Jul 1999 | Air Tractor AT-502 | Shelley, Idaho, United States | - | Fatal | 1 |
| 4 Nov 1999 | Kaman K-1200 | Emida, Idaho, United States | Mountain West Helicopters, LLC | No injuries | - |
| 3 Jul 1999 | Piper PA-31-350 | Garden Valley, Idaho, United States | Salmon Air, Inc. | Minor injuries | - |
| 12 Sep 1999 | Gentry SERIES 5 VIXEN | Naples, Idaho, United States | Daniel Byler | Fatal | 2 |
| 13 Mar 1999 | Piper PA-28-140 | Rexburg, Idaho, United States | Dean R. Hathaway | Serious injuries | - |
| 15 Sep 1999 | Stinson 108-2 | Burley, Idaho, United States | - | No injuries | - |