# NTSB CHI84LA366: Cessna A188B, N4797Q, Delavan, MN, August 27, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 27, 1984, 13:30 local (18:30 UTC)
- Place: Delavan, MN
- Coordinates: 43.759254, -94.009948 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.7593&lon=-94.0099&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12755
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA366
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12755/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA366

## Sequence of events

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

- In flight collision with object, takeoff - initial climb
  - performance data - not followed, pilot in command (cause)
  - psychological condition, pilot in command (contributing factor)
  - procedures/directives - not followed, pilot in command (cause)
  - self-induced pressure, pilot in command (contributing factor)
  - in-flight planning/decision - improper, pilot in command (cause)
- In flight collision with terrain/water, takeoff - initial climb

## Analysis

THE PLT STATED THE ACFT WOULD NOT CLIMB RAPIDLY ENOUGH ON TAKEOFF TO CLEAR POWERLINES. PLT ELECTED TO FLY UNDER THE WIRES INSTEAD OF CLIMBING OVER THEM AND RISKING STALLING THE ACFT. THE PROP, WINDSHIELD, AND VERT STABILIZER CONTACTED THE LOWEST WIRE. PLT CONTINUED TO FLY THE ACFT AND LANDED IN A FIELD.

## Aircraft

- Registration: [N4797Q](https://openairdocs.org/deregistered/N4797Q-2012-12-13), registration cancelled 2012-12-13, S/N 18802536T, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA A188B
- Registry model: [Cessna A188B](https://openairdocs.org/model/cessna-a188b) (registry code 2073005) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Airframe hours: 1436
- Engines: CONTINENTAL IO-520 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Willard Kiehm, doing business as Kiehm Flying Service
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 15, 1984, 120 hours before
- Departed: DELAVAN, MN

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 55; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 4,000 total, 3,000 in this make and model, 140 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 225° at 5 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 93 °F

## 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 19840827044089A](https://openairdocs.org/incident/19840827044089A), Aug 27, 1984: Cessna A188B, Delavan, MN, Substantial damage. After liftoff, pilot determined that he could clear powerlines. Tried to fly under, hit lower strand of lines.

## Other investigations on N4797Q (2)

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 CHI96LA313](https://openairdocs.org/ntsb/CHI96LA313), Aug 23, 1996: Cessna A188B (N4797Q), Aitkin, MN, substantial damage. Probable cause: the pilot's failure to maintain clearance from known transmission lines. Factors relating to this accident were the transmission lines and the sunglare which hindered the pilot's ability to see the…
- [NTSB CHI81FER40](https://openairdocs.org/ntsb/CHI81FER40), May 29, 1981: Cessna A188B (N4797Q), Leroy, MN, substantial damage

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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