DFW05CA209

NTSB accident investigation · Rockwell S-2R · Lyford, TX · August 9, 2005

Accident · No injuriesData collectionFinal report
Date
August 9, 2005, 09:20 local (14:20 UTC)
Place
Lyford, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N7794VRockwell S-2R
Weather
Visual (VMC) · Day
Status
Completed · report October 27, 2005
Report
Approved by Office Director
Parties
San Antonio FSDO
Case key
62197

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 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 powerManeuvering - turn to reverse direction
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
On ground/water encounter with terrain/waterEmergency landing
Terrain condition - plowed/furrowedFactor
Main gear collapsedEmergency landing

Analysis

The 18,000-hour commercial pilot of an agricultural aerial application airplane departed a private airstrip at approximately 0855, with the airplane filled with 200 gallons of fuel, en-route to his job site. The pilot started his spraying runs and during a "steep climbing left turn," the engine lost power. The pilot lowered the wing flaps and turned the airplane into the wind; however, and after determining there were "obstacles" in his landing path, he continued the turn towards the west which resulted in landing with a quartering tailwind. The airplane stalled just above the ground, impacting the right gear and wing tip. The airplane came to rest in the upright position in a plowed field. The reason for the reported loss of engine power could not be determined.

Factual narrative

On August 9, 2005, approximately 0920 central daylight time, a single-engine Rockwell S-2R agricultural airplane, N7794V, was substantially damaged during a forced landing following a loss of engine power while maneuvering near Lyford, Texas. The commercial pilot, sole occupant of the airplane, was not injured. The airplane was registered to and operated by Bennack Flying Service, Inc., of Lyford, Texas, under the provisions of 14 Code of Federal Regulations Part 137 as an aerial application flight. Visual meteorological conditions prevailed and a flight plan was not filed for the local flight.

According to a written statement submitted by the 18,000-hour pilot, he departed a private airstrip at approximately 0855, with the airplane filled with 200 gallons of fuel, en-route to his job site. The pilot stated, that he started his spraying runs and during a steep climbing left turn, experienced an engine failure. The pilot lowered the flaps and turned into the wind; however, after determining there were "obstacles" in his landing path, he continued the turn towards the west, which resulted in landing with a quartering tailwind. The pilot further stated that the airplane stalled just above the ground, impacting the right gear and wing tip.

An examination of the airplane by a Federal Aviation Administration (FAA) inspector, who traveled to the scene of the accident, revealed structural damage to the right wing. Additional photos of the airplane, showed the right main landing gear collapsed upward, toward the right wing. The airplane came to rest upright in a plowed field. The reason for the reported loss of engine power could not be determined.

At 0852, the automated weather observing system at Valley International Airport (HRL), approximately 18 miles south of the accident site, reported wind from 160 degrees at 18 knots, 10 statute miles visibility, few clouds at 2,300 feet, 88 Fahrenheit, dew point 73 degrees Fahrenheit, and an altimeter setting of 29.98 inches of Mercury.

Aircraft

Registration
N7794V
Reported as
Rockwell S-2R
Category
Airplane
Serial number
2321R
Airframe hours
5,307
Engine
Garrett TPE-331, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Bennack Flying Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · June 1, 2005 · 106 hours before
Departed
Lyford, TX
Destination
Lyford, TX

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
65
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
February 1, 2004
Seat
Front
Flight hours
18,000 total · 2,000 in this make and model · 150 in the last 90 days · 60 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 18 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 73 °F
Altimeter
29.97 inHg
Observed at
HRL, 18 nm away