# NTSB CHI91DTK02: Cessna 188/B, N9399G, Hecla, SD, July 13, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 13, 1991, 15:00 local (20:00 UTC)
- Place: Hecla, SD
- Coordinates: 45.880275, -98.149345 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.8803&lon=-98.1493&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 28, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 14879
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91DTK02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14879/pdf
- Page: https://openairdocs.org/ntsb/CHI91DTK02

## Probable cause

THE FAILURE OF THE PILOT TO MAINTAIN AIRCRAFT CONTROL AS HE ATTEMPTED TO JETTISON A LOAD OF AGRICULTURAL CHEMICAL AFTER THE AIRPLANE FAILED TO CLIMB AFTER TAKEOFF.  FACTORS ASSOCIATED WITH THE ACCIDENT ARE AN ATTEMPTED DOWNWIND TAKEOFF BY THE PILOT.

## Sequence of events

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

- Dragged wing,rotor,pod,float or tail/skid, cruise
  - weather condition - tailwind (contributing factor)
  - load jettison - attempted, pilot in command
  - aircraft control - not maintained, pilot in command (cause)
  - climb - not possible, pilot in command

## Analysis

THE PILOT OF THE ACCIDENT AIRPLANE ATTEMPTED A DOWNWIND TAKEOFF. THE AIRPLANE FAILED TO CLIMB AFTER IT CROSSED THE END OF THE RUNWAY. THE AIRPLANE DRAGGED A WING AS THE PILOT WAS ATTEMPTING TO JETTISON A LOAD OF AGRICULTURAL CHEMICALS.

## Aircraft

- Registration: [N9399G](https://openairdocs.org/deregistered/N9399G-2000-07-31), registration cancelled 2000-07-31, S/N 18801474T (OpenAirDocs)
- Reported make and model: CESSNA 188/B
- Registry model: [Cessna A188B](https://openairdocs.org/model/cessna-a188b) (registry code 2073005) (OpenAirDocs)
- Category: Airplane
- Serial number: 18801474T
- Engines: CONTINENTAL 10-520-D 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Country Air Service, Inc.
- Airworthiness certificate: Special, Restricted (Special)

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; flight hours: 1,594 total, 587 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 61 °F
- Altimeter: 30.00 inHg
- Observed at: ABR, 35 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 19910713027439A](https://openairdocs.org/incident/19910713027439A), Jul 13, 1991: Cessna A188B, Hecla, SD, Substantial damage. Poor climb on lift off jettisoned load with head down. Allowed spray rig to catch in crop. Crashed . Wind variable.

## Other investigations on N9399G (1)

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.

- [NTSB MIA76FKQ35](https://openairdocs.org/ntsb/MIA76FKQ35), Jun 8, 1976: Cessna A188B (N9399G), Shelby, MS, destroyed

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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