LAX98LA238

NTSB accident investigation · Ayres S2R · Shafter, CA · July 21, 1998

Accident · No injuriesLimited investigationFinal report
Date
July 21, 1998, 07:15 local (14:15 UTC)
Place
Shafter, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N8960QAyres S2R
Weather
Visual (VMC) · Day
Status
Completed · report June 22, 2000
Report
Approved by Office Director
FAA report
19980721016759A
Case key
43192

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 pilot's failure to maintain an adequate clearance from the irrigation standpipe due to glare from the rising sun.

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 - utility pole
Light condition - sunglareCause
Light condition - dawn
Visual lookout - restrictedPilot in commandCause
Visual/aural detectionPilot in command
Forced landingEmergency descent/landing
Terrain condition - open field
Nose overLanding - roll
Terrain condition - soft

Analysis

The airplane collided with an irrigation standpipe while applying chemicals to a field. The pilot stated that this was the last pass over the cotton field in an easterly direction. The sun had just risen and was reflecting off a clear plastic crop cover located next to the standpipe and the glare made it difficult to see straight ahead. The pilot stated that he saw the standpipe at the last minute and attempted to maneuver around it by pulling the aircraft up. After colliding with the standpipe, he made an emergency landing and came to rest inverted. No mechanical anomalies were noted with the aircraft. According to a computer generated Sun/Moon astrological program, the magnetic bearing to the sun was 60.7 degrees, and it was approximately 14.4 degrees above the horizon.

Factual narrative

On July 21, 1998, at 0715 hours Pacific daylight time, an Ayers S2R, N8960Q, collided with an irrigation standpipe while maneuvering to spray crops near Shafter, California. The aircraft, operated by Inland Crop Dusters, Inc., under 14 CFR Part 137 as an agricultural crop dusting flight, sustained substantial damage. The commercial pilot was not injured. Visual meteorological conditions existed for the flight and no flight plan was filed.

The pilot stated that no discrepancies were noted with the takeoff or with crop dusting flight. On the last pass of the morning on an easterly heading, the pilot stated that he spotted a standpipe and attempted to avoid it by pulling the aircraft up. He stated that the airplane collided with the standpipe and he made an emergency landing. During the landing roll, the airplane nosed over in soft soil. The pilot stated that the emergency landing was conducted with the standpipe attached to his left main inboard wing. The pilot reported that no mechanical anomalies were noted with the aircraft or engine.

In an interview with a Federal Aviation Administration (FAA) inspector the pilot stated that on the last pass, the sun had risen and was reflecting off a clear plastic crop cover. The pilot stated that it made it difficult to see the standpipe, and when he did see it he was too close to avoid it and impacted it.

According to a computer generated Sun/Moon astrological program, the magnetic bearing to the sun was 60.7 degrees, and it was approximately 14.4 degrees above the horizon.

Aircraft

Registration
N8960Q
Reported as
Ayres S2R
Category
Airplane
Serial number
2450R
Airframe hours
5,244
Engine
Garrett TPE331-6-252M, 715 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Inland Crop Dusters Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · July 1, 1998 · 50 hours before
Departed
MIT · CA

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
38
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
8,000 total · 440 in this make and model · 7,850 as pilot in command · 200 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 55 °F
Altimeter
29.00 inHg
Observed at
BFL, 10 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.

Other investigations on N8960Q · 1

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