# NTSB DEN90DTE06: Cessna 188A, N2080J, Holyoke, CO, August 20, 1990

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: August 20, 1990, 09:30 local (15:30 UTC)
- Place: Holyoke, CO
- Coordinates: 40.580482, -102.299087 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.5805&lon=-102.2991&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report March 12, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 17798
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN90DTE06
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17798/pdf
- Page: https://openairdocs.org/ntsb/DEN90DTE06

## Probable cause

A STALL MUSH WHICH OCCURRED WHEN THE PILOT RETRACTED THE FLAPS PREMATURELY FOLLOWING TAKEOFF, CAUSING THE AIRCRAFT TO SETTLE INTO THE GROUND.

## Sequence of events

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

- In flight collision with terrain/water, takeoff - initial climb
  - terrain condition - ground
  - stall/mush - inadvertent, pilot in command (cause)

## Analysis

THE AGRICULTURAL APPLICATOR TOOK OFF FULLY LOADED WITH FUEL AND AGRICULTURAL CHEMICAL. GROSS WEIGHT WAS AT OR SLIGHTLY ABOVE MAXIMUM. THE AIRCRAFT TRAVELED APPROXIMATELY THREE QUARTERS OF A MILE WHERE IT IMPACTED FOLLOWING FLAP RETRACTION. THE PILOT WAS JETTISONING HIS CHEMICAL LOAD AT THE TIME OF IMPACT.

## Aircraft

- Registration: [N2080J](https://openairdocs.org/aircraft/N2080J), registered now, S/N T18803370T, built 1978 (OpenAirDocs)
- Reported make and model: CESSNA 188A
- Registry model: [Cessna T188C](https://openairdocs.org/model/cessna-t188c) (registry code 2073012) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: T18803380T
- Engines: CONTINENTAL TSIO-520T 310 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Operator: Gibb, Gary, doing business as Double 'G' Flying Service, Inc

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 3,533 total, 2,150 in this make and model, 3,217 as pilot in command, 142 in the last 90 days, 42 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 6 knots
- Visibility: 25 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Observed at: AKO, 60 nm away

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.