MIA08LA167

NTSB accident investigation · Ayres S2R-T15 · Morton, MS · August 17, 2008

Accident · FatalLimited investigationFinal report
Date
August 17, 2008, 13:05 local (18:05 UTC)
Place
Morton, MS
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4015PAyres S2R-T15
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report June 17, 2010
Report
Approved by Office Director
Parties
Pratt & Whitney Canada, Hartzell Propeller Inc., FAA / FSDO
FAA report
20080817844929A
Case key
68716

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 clearance from trees during low altitude maneuvering.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAyres S2R-T15: 3 casesAll aircraft: 9,295 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Response/compensationAyres S2R-T15: 1 caseAll aircraft: 933 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The airplane departed for a scheduled agriculture application from a private airstrip after uploading fuel and pesticide. Authorities were notified once the airplane did not return and it was noted the application was not sprayed on the intended crop. The airplane was located later that evening, approximately a ¼-mile from the intended area of application. The airplane impacted trees on a southerly heading, and several trees and branches were observed cut along the airplane descent path into a wooded area. The airplane separated into several sections during the impact sequence. Examination of the wreckage established flight control continuity, and all separations were from impact forces. All flight controls surfaces and its systems were found at the accident sight. There were no indications of any mechanical discrepancies to any of the engine’s components. Damages to the engine were consistent with the engine at mid to high power range at the time of impact. There were no discrepancies noted that would have prevented normal operation of the propeller. All damage was consistent with impact damage. The propeller was rotating and not feathered, and damages to the blades were consistent with operating at high power at the time of impact. Weather information for the times and area of the accident site revealed no weather conditions existed that would have adverse effect on the pilot and the airplane during the accident flight.

Factual narrative

HISTORY OF FLIGHT On August 17, 2008, at 1305 central daylight time, an Ayres, S2R-T15, N4015P, incurred substantial damage when it collided with trees while approaching an application area in Morton, Mississippi. The pilot was killed. Visual meteorological conditions prevailed and no flight plan was filed. The aerial application flight was operated by Cochran Flying Service, under the provisions of Title 14 Code of Federal Regulations Part 137. Information obtain from the operator’s representative indicated the pilot had made several applications earlier in the day. He returned back to the private airstrip in Canton, Mississippi, to refuel the airplane with 100 gallons (gal) and load a total of 120 gal of pesticide for the next scheduled application of the day. The pilot departed about 1245 for the intended crop. A family member was concerned when the pilot did not return by the expected time. The crop owner reported that he never saw the airplane and there was no indication that the crop was sprayed. The local authorities were notified and a search for the airplane was initiated. The airplane was located that evening proximately a 1/4 mile north of the intended crop. It was on a southerly heading when it collided with the trees. PERSONNEL INFORMATION The pilot held a commercial pilot certificate with airplane single engine and multi engine land rating; with limitation of carrying passengers in airplanes for hire is prohibited at night and on cross-country flight of more than 50 nautical miles. He was issued a second-class medical certificate in March 28, 2008, with a limitation of must wear corrective lenses. The pilot reported 19,000 total flight hours at the time of the medical. The pilot held an airframe and powerplant certificate with an inspection authorization rating. The pilot’s flightlog books were not provided. AIRCRAFT INFORMATION The Ayres, S2R-T15, was built in 1979 with serial number T15-004. The airplane’s classification was restricted and with a category of agriculture and pest control. The responding Federal Aviation Administration (FAA) Inspector stated a review of the airplane’s maintenance records revealed the airplane had an annual inspection on the airframe, propeller, and engine on February 17, 2008, at which time the airplane had accumulated a total of 11,356 hours. The airplane had maintenance performed on June 10, 2008. METEOROLOGICAL INFORMATION The nearest official weather reporting station was Jackson International Airport (JAN), Jackson, MS., located 24 miles south west of the accident site. The 1254 surface observation was: winds 030 at 9 knots; visibility 8 statute miles; sky condition scatter 1,400, cumulonimbus clouds, broken at 4,900 to 6,500 feet, rain; temperature 28 degrees Celsius; dew point 22 degrees Celsius; altimeter 29.59 inches of mercury. Weather information obtained by the U.S. Department of Commerce National Oceanic & Atmospheric Administration for the times and area of the accident sight revealedno weather conditions existed that would have adverse effect on the pilot and the airplane during the accident flight. WRECKAGE AND IMPACT INFORMATION The responding FAA inspector stated the onboard GPS system stopped recording the flight approximately 1 mile north, northwest of the accident sight. The airplane was on a south heading when it collided with the trees. The aircraft came to rest in a heavily wooded area on a heading of 180 degrees. The airplane’s propeller cut several trees and branches during its descent. The airplane separated into several sections during the crash sequence. The fuselage and wings came to rest 84 feet from where the airplane first made contact with the trees. The engine section came to rest 75 feet from the fuselage. Examination of the wreckage established flight control continuity; all separation were from impact damage. All flight controls surfaces and its systems were found at the accident sight. The airplane’s engine and propeller were examined by their respective manufacturers with National Transportation Safety Board and FAA oversight. There were no indications of any mechanical discrepancies to any of the engine’s component noted. Damages to the engine were consistent with the engine at mid to high power range at the time of impact. There were no discrepancies noted that would have prevented normal operations of the propeller. All damage was consistent with impact damage. The propeller was rotating and not feathered, and damages to the blades were consistent with operating at high power at the time of impact. MEDICAL AND PATHOLOGICAL INFORMATION The Mississippi State Medical Examiners Office in Jackson, Mississippi, conducted a postmortem examination. The cause of death for the pilot was blunt force trauma. The FAA Civil Aeromedical Institute (CAMI) conducted toxicology testing on specimens from the pilot. No carbon monoxide, cyanide, ethanol, or drugs were detected.

Aircraft

Registration
N4015P
Reported as
Ayres S2R-T15
Category
Airplane
Serial number
T15-004
Airframe hours
7,261
Engine
Pratt and Whitney of Canada PT6A-34AG, 750 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Cochran Flying Service
Registered owner
Cochran Flying Service
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · February 17, 2008 · 408 hours before
Departed
NONE · Canton, MS
Destination
NONE · Canton, MS

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
53
Injuries
Fatal
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 2, With waivers/limitations
Seat
Front
Toxicology
Performed
Flight hours
19,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 9 knots
Visibility
4 statute miles
Lowest ceiling
3,200 ft broken
Temperature
82 °F, dew point 72 °F
Altimeter
29.96 inHg
Observed at
JAN, 24 nm away

Docket · 14

The files NTSB released with the investigation on April 22, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.8 MB in all.

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 N4015P · 1

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