LAX05CA250

NTSB accident investigation · Ayres S2R-134 · Kerman, CA · July 30, 2005

Accident · No injuriesData collectionFinal report
Date
July 30, 2005, 11:30 local (18:30 UTC)
Place
Kerman, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N4003ZAyres S2R-134
Weather
Visual (VMC) · Day
Status
Completed · report October 27, 2005
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20050730017199A
Case key
62107

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 obtain an adequate airspeed during an attempted takeoff.

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.

OverrunTakeoff - roll/run
Airport facilities,runway/landing area condition - short runway/landing area
Airspeed(vlof) - not obtainedPilot in commandCause
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - high vegetation
Nose overTakeoff - roll/run

Analysis

During the takeoff roll on the agricultural flight, the airplane failed to become airborne prior to rolling off the departure end of the runway, becoming entangled with bushes, and nosing over. The pilot had previously performed five spray flights from the dirt airstrip without mishap. The airplane had been reloaded and hot refueled between the flights. For the accident takeoff, the chemical load had been reduced from 350 gallons to 300 gallons at the pilot's request because the ambient air temperature was warming up. No mechanical malfunctions occurred with the airplane during the flight.

Factual narrative

On July 30, 2005, about 1130 Pacific daylight time, an Ayres S2R-134, N4003Z, overran the departure end of the runway, became entangled with bushes, and nosed over during the takeoff roll from a private airstrip near Kerman, California. The airplane was owned and operated by Mid Cal Ag Aviation, Inc., in Kerman, and it was substantially damaged. The commercial pilot was not injured during the agricultural flight in the restricted category airplane. The flight was performed under the provisions of 14 CFR Part 137. Visual meteorological conditions prevailed. The local area flight originated from the airstrip about 0800.

The pilot reported to the National Transportation Safety Board investigator that during the day he had performed five agricultural spray flights without mishap. The airplane had been hot refueled and reloaded between the flights. For the accident takeoff, the chemical load had been reduced from 350 gallons to 300 gallons at the pilot's request because the ambient air temperature was warming up.

According to the operator, as evidenced by wheel marks in the dirt-surfaced runway, on the accident flight/takeoff the airplane had accelerated on the runway and it overran the departure end without lifting off. Thereafter, the airplane encountered weeds. The airplane nosed over when the weeds balled up under the airplane.

The pilot reported to the Safety Board investigator that no mechanical malfunctions had occurred with the airplane during the flight.

Aircraft

Registration
N4003Z
Reported as
Ayres S2R-134
Category
Airplane
Serial number
6007
Engine
Pratt & Whitney PT6A-60A, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Mid Cal Ag Aviation, Inc.
Registered owner
Mid Cal Ag Aviation, Inc.
Airworthiness certificate
Special, Restricted (Special)
Departed
NONE · Kerman, CA
Destination
NONE · Kerman, CA
Airport
NONE · None, runway 09, 2,600 × 50 ft, dirt

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
66
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2
Flight hours
12,000 total · 300 in this make and model · 160 in the last 90 days · 50 in the last 30 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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