CHI97LA273

NTSB accident investigation · Cessna 188B · South Haven, MI · August 26, 1997

Accident · No injuriesLimited investigationFinal report
Date
August 26, 1997, 12:30 local (16:30 UTC)
Place
South Haven, MI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N21639Cessna 188B
Weather
Visual (VMC) · Day
Status
Completed · report May 29, 1998
Report
Approved by Office Director
FAA report
19970826024209A
Case key
10684

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

failure of a connecting rod in the engine assembly, which resulted in loss of engine power and a forced landing. Factors relating to the accident were: lack of a recommended engine overhaul, and the lack of suitable terrain for an emergency landing.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(total) - mech failure/malfManeuvering - aerial application
Engine assembly,connecting rod - failureFactor
Maintenance,overhaul,major - not performedCompany/operator managementFactor
Forced landingEmergency descent/landing
On ground/water encounter with terrain/waterEmergency landing
Terrain condition - none suitableFactor
Terrain condition - cropFactor

Analysis

After pulling up from a swath run, the engine lost power. The pilot then made a forced landing in a blue berry field. Postaccident investigation revealed a failed connecting rod in the engine. The engine had accumulated 1,900 hours since the last overhaul. The manufacturer's recommended interval for overhaul was 1,200 hours. The company owner said that he knew the engine was going to need an overhaul; however, he hoped that it would last until the aerial application season was over.

Factual narrative

On August 26, 1997, at 1230 eastern daylight time, a Cessna 188B, N21639, registered to Robertson Crop Dusting Services of South Haven, Michigan, was substantially damaged during a forced landing in a crop field near South Haven, Michigan. The pilot reported that the engine lost all power. The commercial pilot reported no injuries. The 14 CFR Part 137 flight was operating in visual meteorological conditions. No flight plan was on file. The local flight departed about 1210.

A post accident investigation found that there was an internal failure of a connecting rod. The engine had a total time in service since the last major overhaul of 1,900 hours. The manufacturers recommendation for overhaul is 1,200 hours. The owner of the airplane said that he was hoping that the engine would last through the spraying season and that he intended to overhaul it during the off season.

Aircraft

Registration
N21639
Reported as
Cessna 188B
Category
Airplane
Serial number
18800925
Airframe hours
5,067
Engine
Continental IO-520-D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Robertson Crop Dusting Service
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 22, 1997 · 296 hours before
Departed
0D1 · MI

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
32
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
3,017 total · 2,000 in this make and model · 2,997 as pilot in command · 250 in the last 90 days · 80 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 7 knots
Visibility
4 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 64 °F
Altimeter
30.00 inHg
Observed at
KBE, 17 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.