FTW99LA253

NTSB accident investigation · Cessna A188B · Randalette, OK · September 5, 1999

Accident · No injuriesLimited investigationFinal report
Date
September 5, 1999, 09:30 local (14:30 UTC)
Place
Randalette, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N731PWCessna A188B
Weather
Visual (VMC) · Day
Status
Completed · report November 30, 2000
Report
Approved by Office Director
FAA report
19990905026319A
Case key
47306

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

The failure of the pilot to maintain clearance with the telephone pole. A factor was the sunglare.

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.

In flight collision with objectManeuvering - aerial application
Object - pole
Clearance - not maintainedPilot in commandCause
Light condition - sunglareFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The airplane's right wing contacted a telephone pole when the pilot was blinded by the sun, while maneuvering during an aerial application flight. According to the pilot, the airplane was in a left bank turning towards the east, when the sun 'blinded him.' He added that as he was 'watching thru the satloc, [he] saw one pole pass under [the] right wing, then one under [the] left, so [he] pushed down.' Subsequently, the right wing contacted a third telephone pole, and the airplane impacted the ground and came to rest inverted.

Factual narrative

On September 5, 1999, at 0930 central daylight time, a Cessna 188B agricultural airplane, N731PW, was substantially damaged when it impacted a telephone pole while maneuvering near Randalette, Oklahoma. The airplane was registered to Abernathy Spraying Service Inc., of Tipton, Oklahoma, and operated by a private individual. The airline transport rated pilot, sole occupant of the airplane, was not injured. Visual meteorological conditions prevailed for the 14 Code of Federal Regulations Part 137 aerial application flight. The flight originated from the Tipton Municipal Airport, Tipton, Oklahoma, at 0845.

The 20,000-hour pilot reported during a telephone interview, that he was spraying a field 20 nautical miles north of Lawton, Oklahoma, with malathion, a chemical used for the eradication of boll weevils. He was maneuvering the airplane in a left bank turning towards the east, when the sun "blinded him." He added, in the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), that "watching thru the sat loc, [he] saw one pole pass under [the] right wing, then one under [the] left, so [he] pushed down." Subsequently, the right wing impacted a third telephone pole. The airplane impacted the ground and slid approximately 150 feet, coming to rest inverted on a southerly heading.

The operator reported that the right wing separated from the fuselage at the wing root. He added that the engine mount separated from the airframe, and the propeller separated from the crankshaft.

Aircraft

Registration
N731PW
Reported as
Cessna A188B
Category
Airplane
Serial number
18803057T
Airframe hours
5,207
Engine
Continental IO-520-D, 285 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Larry Abernathy
Registered owner
Abernathy Spraying Service Inc
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · February 1, 1999 · 329 hours before
Departed
OK26 · Tipton, OK

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
39
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
20,000 total · 7,000 in this make and model · 150 in the last 90 days · 35 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
LAW, 20 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.