# NTSB FTW90DPJ07: Cessna T188C, N4680J, Altus, OK, June 3, 1990

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: June 3, 1990, 08:11 local (13:11 UTC)
- Place: Altus, OK
- Coordinates: 34.639705, -99.31034 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.6397&lon=-99.3103&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report October 2, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 22956
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW90DPJ07
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22956/pdf
- Page: https://openairdocs.org/ntsb/FTW90DPJ07

## Probable cause

THE PIC DID NOT MAINTAIN THE PROPER CLEARANCE FROM THE POWERLINE.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with object, maneuvering - turn to reverse direction
  - object - wire,transmission
  - clearance - not maintained, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE AG AIRPLANE WAS AT THE END OF A SPRAY RUN WHEN THE PILOT PULLED UP AND BANKED RIGHT & THE LEFT WING COLLIDED WITH A POWER LINE. THE AIRPLANE COLLIDED WITH THE GROUND AND STARTED TO BURN.

## Aircraft

- Registration: [N4680J](https://openairdocs.org/deregistered/N4680J-1990-12-05), registration cancelled 1990-12-05, S/N T18803761T (OpenAirDocs)
- Reported make and model: CESSNA T188C
- Registry model: [Cessna T188C](https://openairdocs.org/model/cessna-t188c) (registry code 2073012) (OpenAirDocs)
- Category: Airplane
- Serial number: T18803761T
- Airframe hours: 1580
- Engines: CONTINENTAL TSIO-520 310 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Aerial application, Part 137
- Operator: William C. Smith, doing business as Sheffield Smith Spray Co.
- Registered owner: Sheffield-Smith Spray Co. Inc
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, January 25, 1990, 20 hours before
- Airport: NONE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 64; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 19,865 total, 6,000 in this make and model, 50 in the last 90 days, 35 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: 3,000 ft broken
- Temperature: 66 °F, dew point 61 °F
- Altimeter: 30.00 inHg
- Observed at: LTS, 3 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19900603017989A](https://openairdocs.org/incident/19900603017989A), Jun 3, 1990: Cessna T188C, Altus, OK, Destroyed. Wing struck wire on pullup while spraying field.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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