CEN18LA342

NTSB accident investigation · Cessna A188 · Whitewater, KS · August 17, 2018

Accident · No injuriesLimited investigationFinal report
Date
August 17, 2018, 18:15 local (23:15 UTC)
Place
Whitewater, KS
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N9076RCessna A188
Defining event
Maneuvering-low-alt flying: Powerplant sys/comp malf/fail
Weather
Visual (VMC) · Day
Status
Completed · report August 3, 2020
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20180817014369A
Case key
98108

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

On this page

Probable cause

The partial loss of engine power due to low cylinder compression, which led to the forced landing following a pull-up maneuver. Contributing to the accident was the airplane’s high gross weight.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Engine (reciprocating): recip eng cyl sectionAircraft › Aircraft power plant · Damaged/degradedCessna A188B: 2 casesAll aircraft: 373 casesProbable cause
Performance/control parametersAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleCessna A188B: 3 casesAll aircraft: 1,269 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot was performing an aerial application flight with the airplane loaded with product near its maximum gross weight. As the pilot pulled up to reverse course after the second application pass, the airplane did not fly as expected. Because of his low altitude, he conducted a forced landing in the cornfield. The airplane came to rest upright and sustained substantial damage to left wing, vertical stabilizer, horizontal stabilizers, elevators, and rudder. A postaccident examination of the engine revealed that one of the cylinders had low compression. This would have resulted in a partial loss of engine power. It is likely the airplane was at a low energy state during the pull-up maneuver to reverse direction, and the partial engine power loss would have further reduced the airplane's energy. These issues, combined with the airplane's high gross weight, would have made sustained flight difficult.

Factual narrative

***This report was modified on July 2, 2020. Please see the docket for this accident to view the original report.*** On August 17, 2018, about 1815 central daylight time, a Cessna A188 airplane, N9076R, was substantially damaged when it was involved in an accident near Whitewater, Kansas. The pilot was not injured. The airplane was operated under Title 14 Code of Federal Regulations Part 137 as an aerial application flight. According to the pilot, the airplane departed on an aerial application flight from a nearby airport at 1800. The airplane was loaded with applicant bringing it near it's maximum gross weight. The flight was normal until the second application pass, As the pilot pulled up to reverse course, the airplane did not fly as expected. Due to the low altitude, the pilot attempted to dump the applicant and conducted a forced landing in the cornfield. The pilot was able to flare the airplane prior to impacting in the cornfield. The airplane came to rest upright and sustained substantial damage to left wing, vertical stabilizer, horizontal stabilizers, elevators, and rudder. Federal Aviation Administration inspectors performed a limited examination when the airplane was removed from the cornfield and could not find any preimpact anomalies with the airframe and engine. Once recovered to a maintenance facility it was discovered that one of the engine cylinders could only hold 10 psi of pressure.

Aircraft

Registration
N9076R
Reported as
Cessna A188 (B)
Category
Airplane
Serial number
18802101T
Built
1975
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Tri Rotor Spray & Chemical, doing business as Tri-Rotor Spray And Chemical Inc
Registered owner
Tri Rotor Spray & Chemical
Airworthiness certificate
Special, Restricted (Special)
Departed
KEWK · Newton, KS
Destination
KEWK · Newton, KS

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
21
Injuries
None
Certificates
Private, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Seat
Single

Weather

Conditions
Visual (VMC) · Day
Wind
50° at 6 knots
Visibility
9 statute miles
Lowest ceiling
4,500 ft broken
Temperature
82 °F, dew point 66 °F
Altimeter
30.06 inHg
Observed at
KEWK, 9 nm away

Docket · 4

The files NTSB released with the investigation on June 2, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.5 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N9076R · 2

Matched to the same aircraft by N-number and date.