Grumman Acft Eng Cor-Schweizer G 164A accident near New Roads, Louisiana, March 17, 2015
On March 17, 2015 at about 8:30 pm local time, a 1974 Grumman Acft Eng Cor-Schweizer G 164A, registered N9755, was substantially damaged in an accident during maneuvering near New Roads, Louisiana. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The loss of engine power due to three stuck exhaust valves.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- March 17, 2015 · about 8:30 pm local time
- Place
- New Roads, Louisiana · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman Acft Eng Cor-Schweizer G 164A, built 1974 · all G 164As on the register
- Registration
- N9755 · no longer on the register · serial 1250
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
While the commercial pilot was maneuvering to begin an agricultural application flight, smoke from the engine entered the cockpit, followed by the engine experiencing a partial loss of power. The pilot performed a forced landing, and during the landing roll, the airplane nosed over. An examination of the engine revealed that three of the cylinders exhaust valves were stuck and had 0-to-low compression values.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Powerplant sys/comp malf/fail during maneuvering defining event
- Loss of engine power (partial) during maneuvering
- Nose over/nose down during after landing
The NTSB's findings
- cause Aircraft › Aircraft power plant › Engine (reciprocating) › Recip eng cyl section › Malfunction
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land
- Medical certificate: Class 2 (without waivers/limitations)
- Seat: sngl
- Injury: minor injuries
The aircraft
- Landing gear: fixed
- Operator: Old River Applicators LLC
The flight
- Departed from: New Roads LA
- Destination: New Roads LA
- Flight plan: none
Weather at the time
- Light: daylight
- Wind: from 280° at 8 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 84°F (29°C), dew point 63°F (17°C)
- Altimeter: 30.05 inHg
- Observation at 8:53 pm from KBTR, 14 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
1 document, released by the NTSB on March 8, 2016. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Correspondence with FAA | PDF, 1 page | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
Other NTSB records under N9755 the same tail number, which may have belonged to a different aircraft at the time
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.