Grumman 164A accident near Goodyear, Arizona, September 8, 1984
On September 8, 1984 at about 11:25 am local time, a Grumman 164A, registered N9925, was substantially damaged in an accident near Goodyear, Arizona. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 8, 1984 · about 11:25 am local time
- Place
- Goodyear, Arizona · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman 164A
- Registration
- N9925 · no longer on the register · serial 1331
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
PLT REPORTED PWR LOSS OCCURRED DURING NIGHT AERIAL APPLICATION. ACFT NOSED OVER DURING FORCED LANDING IN CROP FIELD. INVESTIGATION FAILED TO REVEAL ANY EVIDENCE OF A MECHANICAL FAILURE/MALFUNCTION. ENGINE WAS TEST RUN TO EXTENT PERMITTED BY DAMAGE AND NO DISCREPANCIES WERE NOTED.
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
Pilot
- Certificate: flight instructor, commercial pilot
- Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
- Flight time: 4,598 hours in all; 3,000 in this make and model; 150 in the last 90 days; 110 in the last 30 days; 4,525 as pilot in command; 442 on instruments
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: ctr
The aircraft
- Airframe total time: 6,118 hours
- Last inspection: annual inspection, March 9, 1984; 235 hours since
- Maximum gross weight: 6,000 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-1340 (piston); 0 hours total
- Operator: Hap CO INC
The flight
- Departed from: Goodyear AZ at 11:10 am
- Flight plan: none
- Runway 0
Weather at the time
- Light: night, dark
- Wind: from 270° at 4 knots
- Visibility: 20 statute miles
- Sky: clear
- Temperature: 81°F (27°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Other NTSB records under N9925 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.