CEN20LA271 · Cessna T188 C
Agratech Cessna T188 C · Accident: collision during takeoff/landing
Event
- NTSB case
- CEN20LA271
- 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
- 1 · all aircraft and ground
- Ground fatalities
- Unknown
- 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
Cessna T188 C
- Aircraft type
- Cessna 188
- 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
- N2690J
- Operator
- Agratech
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- Aircraft age
- About 41 years (built 1979)
- 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
- Takeoff
- Defining eventThe 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
- Collision during takeoff/landing
- 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
- Pole
- 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
- Environmental issues › Physical environment
- Personnel issues › Action/decision
- Personnel issues › Physical
Approximate · Coordinates from the NTSB case API, not marked as estimated; no uncertainty radius is established.
NTSB narrative
The pilot was conducting his second aerial application flight of the day. According to a witness, the airplane had been topped off with fuel before the first flight and 165 gallons of chemical just before the accident flight. The witness stated that the airplane became airborne later than he expected. After departure, the airplane angled left from the runway heading and its wingtip impacted a power pole. It then hit power lines and another pole before coming to rest inverted in a draw.
A postaccident examination found no mechanical malfunctions or anomalies that would have precluded normal operation.
Toxicology testing indicated the pilot had the sedating antihistamine diphenhydramine in his blood at the time of the accident. The levels detected were above the therapeutic level for diphenhydramine. Given the pilot’s years of experience and familiarity with the aircraft, it is reasonable to consider that his reaction time and flying performance were diminished due to the use of sedating medication, which resulted in the impact with the power pole.
Probable cause
The pilot’s continued takeoff without ensuring obstacles could be avoided due to his use of a sedating medication, which likely diminished his reaction time and flying performance.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN20LA271
- Event ID
- 20200710X32457
- Case number
- CEN20LA271
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
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, coordinates, cause areas. 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: b8445c6913e90d9b0a7ba10e698eceb5a0347372d7c746dade31e9c826b7bcd3; retrieved 2026-09-15T07:17:06.159Z.