LAX02LA246

NTSB accident investigation · Aero Commander S2R-T34 · Los Banos, CA · August 5, 2002

Accident · No injuriesLimited investigationFinal report
Date
August 5, 2002, 06:20 local (13:20 UTC)
Place
Los Banos, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N8822QAero Commander S2R-T34
Weather
Visual (VMC) · Dawn
Status
Completed · report March 2, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20020805017049A
Case key
55380

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 pilot's failure to maintain an adequate airspeed while maneuvering, which resulted in an inadvertent stall.

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 control - in flightManeuvering - aerial application
Low altitude flight/maneuver - attemptedPilot in command
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - mountainous/hilly

Analysis

The airplane collided with terrain while making a turn during an aerial application flight. The pilot had just finished his first pass over the field. He then pulled up and entered a left turn over hilly terrain along the farm's southern edge. The combined climbing turn and low airspeed were enough to stall the left wing. Shortly thereafter, the left wing contacted terrain. No mechanical malfunctions or failures were noted by the pilot prior to the mishap. Light winds were reported northwest from 1 to 3 knots.

Factual narrative

On August 5, 2002, at 0620 Pacific daylight time, an Aero Commander S2R-T34, collided with terrain while making a turn during an aerial application flight near Los Banos, California. The airplane was operated by Vance Aircraft Salvage, Inc., under the provisions of 14 CFR Part 137. The commercial pilot, the sole occupant, was not injured. The airplane sustained substantial damage. Visual meteorological conditions prevailed at the time, and no flight plan had been filed for the local area aerial application flight that originated from a nearby private farm airstrip at 0610.

The pilot reported that he had just made his first north-to-south pass over the field to which he was applying chemicals. He then reported pulling up and entering a left turn over hilly terrain along the farm's southern edge in an effort to make a second pass over the field. The combination of the climbing turn and low airspeed was enough to stall the left wing. Shortly thereafter, the left wing contacted terrain. The pilot reported weather the morning of the accident as being clear with light northwest winds at 1-3 knots. No mechanical malfunctions or failures were noted by the pilot prior to the mishap.

Aircraft

Registration
N8822Q
Reported as
Aero Commander S2R-T34
Category
Airplane
Serial number
1522R
Airframe hours
16,339.5
Engine
Pratt & Whitney PT6A-34AG, 750 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Vance Aircraft Salvage Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · July 22, 2002 · 43.2 hours before
Departed
Los Banos, 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
48
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
April 12, 2002
Seat
Front
Flight hours
11,440 total · 10,591 in this make and model · 350 in the last 90 days · 117 in the last 30 days

Weather

Conditions
Visual (VMC) · Dawn
Wind
Calm
Visibility
3 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 54 °F
Altimeter
29.95 inHg
Observed at
KMCE, 30 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 N8822Q · 2

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