SEA99LA115 · Grumman G-164B
Grumman G-164B · Accident: loss of control in flight during initial climb
Event
- NTSB case
- SEA99LA115
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Grumman G-164B
- Aircraft type
- Grumman G-164
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N8005C
- Operator
- Mike Carr
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 137: Agricultural
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Initial climb
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of control in flight
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Stall/mush
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Pilot in command › Airspeed, inadequate
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot took off with 1,700 pounds of fertilizer (within the airplane's maximum demonstrated operating load) and approximately 3/4 fuel on an aerial application flight. The airstrip the pilot took off from slopes uphill at the end. The pilot stated that at an altitude of 5 to 10 feet above the ground after takeoff, 'a tailwind came up' and he was unable to stay airborne. The aircraft settled into a wheat field and flipped over approximately 500 feet past the end of the airstrip. The pilot reported that no mechanical malfunction or failure was involved in the accident. He reported the accident site was 4,300 feet above sea level, and that temperature at the time of takeoff was 92 degrees F. Density altitude at this pressure altitude and temperature was 7,500 feet.
Probable cause
The pilot's failure to attain adequate airspeed during takeoff and initial climb, resulting in stall/mush and inability of the aircraft to sustain level flight. Factors included high density altitude, a tailwind, an uphill takeoff surface, and crops in the area where the aircraft settled back to earth.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA99LA115
- Event ID
- 20001212X19372
- Case number
- SEA99LA115
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: b80430ead9f8a2fd0ed0e59e4d61bd63e45dd95972f4ace8e4193ce205fd2f02; retrieved 2026-09-22T14:32:54.245Z.