FTW01LA207

NTSB accident investigation · Ayres S2R-T11 · Spur, TX · September 19, 2001

Accident · No injuriesLimited investigationFinal report
Date
September 19, 2001, 09:20 local (14:20 UTC)
Place
Spur, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N40173Ayres S2R-T11
Weather
Visual (VMC) · Day
Status
Completed · report February 20, 2002
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20010919023909A
Case key
53491

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 loss of engine power while in cruise flight for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.

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 engine powerCruise
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
In flight collision with objectLanding - roll
Object - tree(s)
Terrain condition - none suitableFactor

Analysis

While in cruise flight, the agricultural airplane's engine lost power. The pilot executed a forced landing to a field. During the landing sequence, the airplane's right wing impacted a tree, the airplane spun around to the right, and the landing gear collapsed. There was fuel found in both fuel tanks. The engine was inspected and test run for 3 hours with no anomalies noted.

Factual narrative

On September 19, 2001, approximately 0920 central daylight time, an Ayres S2R-T11 agricultural airplane, N40173, was substantially damaged when it impacted a tree during a forced landing following a loss of engine power in cruise flight near Spur, Texas. The commercial pilot, sole occupant of the airplane, was not injured. The airplane was registered to and operated by Tri County Sprayers Inc., of Hamlin, Texas. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 positioning flight. The flight departed the Hamlin Municipal Airport approximately 0900, and was destined for Crosbyton, Texas.

The pilot reported that approximately 20 minutes into the flight, the engine started losing power. The pilot elected to execute a forced landing to a field. During the landing sequence, the airplane's right wing impacted a tree, the airplane spun around to the right, and the landing gear collapsed.

According to an FAA inspector, who responded to the accident site, the right wing was substantially damaged, and there was fuel found in both fuel tanks.

The operator reported that the engine was recovered and examined at a local maintenance facility. The maintenance mechanic stated that he performed a "Level 2 Propeller Strike Inspection" on the engine, in accordance with manufacturer's procedures. The inspection did not reveal any anomalies that would have prevented engine operation. The engine was then test run for approximately 3 hours at various power settings, and no anomalies were noted.

Aircraft

Registration
N40173
Reported as
Ayres S2R-T11
Category
Airplane
Serial number
T11-002
Airframe hours
8,659
Engine
Garrett TPE331-6, 724 horsepower, turbo prop
Damage
Substantial damage
Flight
Positioning · Part 91
Registered owner
Tri-County Sprayers Inc
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · June 25, 2001 · 140 hours before
Departed
14F · Hamlin, TX
Destination
8F3 · Crosbyton, TX
Flight plan
Unknown

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
40
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
July 1, 2001
Seat
Center
Flight hours
3,800 total · 3,000 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 2 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
75 °F

FAA reports on this event · 1

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