# NTSB ATL83LA341: Cessna A188B, N9172R, Samson, AL, August 27, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 27, 1983, 06:30 local (11:30 UTC)
- Place: Samson, AL
- Coordinates: 31.109132, -86.039901 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=31.1091&lon=-86.0399&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6179
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL83LA341
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6179/pdf
- Page: https://openairdocs.org/ntsb/ATL83LA341

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - engine assembly,bearing - worn (cause)
  - load jettison - not performed, pilot in command (contributing factor)
  - engine assembly,crankshaft - fatigue (cause)
  - engine assembly,crankshaft - failure,total (cause)
- Forced landing, landing - flare/touchdown
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - none suitable (contributing factor)
  - terrain condition - wet (contributing factor)
  - terrain condition - dirt bank/rising embankment (contributing factor)

## Analysis

THE ACFT COLLIDED WITH A DIRT BANK DURING A FORCED LANDING AFTER AN INFLT POWER LOSS. THE PILOT WAS ENROUTE TO A FIELD AT ABOUT 500 FT AGL WHEN THE POWER LOSS OCCURRED. THE PILOT DID NOT JETTISON HIS LOAD OF CHEMICALS. HE LANDED ON WET GRASS AND WAS UNABLE TO STOP IN TIME TO AVOID THE EMBANKMENT. THE ENGINE WAS EXAMINED AFTER THE ACCIDENT. THE CRANKSHAFTWAS BROKEN BETWEEN THE #3 MAIN JOURNAL AND THE #3 CONNECTING ROD JOURNAL. THE #3 MAIN BEARINGS WERE WORN AND HAD BEEN ROTATING ON THE CRANKSHAFT. THE FRACTURED SURFACE OF THE CRANKSHAFT APPEARED TO CONTAIN FATIGUE RELATED MARKINGS. THE ENGINE HAD BEEN OPERATING 2160 HOURS, 877 SINCE OVERHAUL. THE OWNERS KNOW OF NO HISTORY OF PROPELLER GROUND STRIKES.

## Aircraft

- Registration: [N9172R](https://openairdocs.org/deregistered/N9172R-1998-11-12), registration cancelled 1998-11-12, S/N 18802138T (OpenAirDocs)
- Reported make and model: CESSNA A188B
- Registry model: [Cessna A188B](https://openairdocs.org/model/cessna-a188b) (registry code 2073005) (OpenAirDocs)
- Category: Airplane
- Serial number: 18802138T
- Airframe hours: 2160
- Engines: CONTINENTAL IO-520-D 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Ag Flying Service, Inc.
- Registered owner: Jerry Lee Wise
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, August 8, 1983, 81 hours before
- Departed: 0J7, SAMSON, AL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 3,150 total, 350 in this make and model, 3,150 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 5 statute miles
- Lowest ceiling: 2,000 ft broken
- Temperature: 84 °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 19830827065389A](https://openairdocs.org/incident/19830827065389A), Aug 27, 1983: Cessna A188B, Samson, AL, Substantial damage. Engine quit. Overran emergency landing area and struck a road embankment. Crankshaft had broken.

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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