The National Transportation Safety Board did not travel to the scene of this accident.
Additional Participating Entities:
Federal Aviation Administration / Flight Standards District Office; Irving, Texas
Lycoming Engines; Williamsport, Pennsylvania
Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Investigation Docket - National Transportation Safety Board:
https://dms.ntsb.gov/pubdms
Aviation Accident Data Summary - National Transportation Safety Board: https://app.ntsb.gov/pdf
Location: Beckville, TX
Accident Number: CEN17LA317
Date & Time: 08/14/2017, 1017 CDT
Registration: N2591A
Aircraft: PIPER PA22
Aircraft Damage: Substantial
Defining Event: Loss of engine power (partial)
Injuries: 1 Minor
Flight Conducted Under: Part 91: General Aviation - Aerial Observation
Analysis
The commercial pilot reported that, about 2 hours into the pipeline surveillance flight, the engine began running roughly. He initially established a course to a nearby airport; however, the engine was not producing enough power to maintain altitude. He subsequently executed a forced landing to a pasture, which resulted in substantial damage to the left wing.
A postaccident engine examination revealed that the No. 3 cylinder exhaust valve fractured at the stem seat. Metallurgical examination revealed that the fracture features were consistent with torsional loading at fracture. The stem was tapered adjacent to the fracture, and interconnected voids and surface oxidation were observed at the fracture surface. The presence of voids, tapering of the stem, and oxidation are consistent with high-temperature deformation under stress. Further examination revealed grain structure and subsurface oxidation consistent with exposure to elevated temperatures over an extended period of time, consistent with a stuck valve condition.
Factors leading to stuck exhaust valves include excessive engine temperature, dirty or contaminated engine oil, high lead content fuels, hot engine shut-downs, and poor engine baffling. Running engines past the recommended overhaul interval or at elevated temperatures risks creating an exhaust valve fatigue event. The investigation was unable to determine the exact combination of elements that led to the stuck valve. However, based on the available maintenance records, the most recent engine overhaul was completed in 1968, and it is likely that the extended 49-year interval contributed to the stuck valve. While this exceeded the engine manufacturer's 12-year or 1,500-hour time between overhaul interval, the operator was not required to comply under current regulations due to the type of operation.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
A stuck exhaust valve, which resulted in the failure of the valve and a loss of engine power. Contributing to the valve failure and loss of engine power was the extended time since the last overhaul.
Findings
Aircraft
Recip eng cyl section - Failure (Cause)
Recip eng cyl section - Fatigue/wear/corrosion (Cause)
Engine (reciprocating) - Not serviced/maintained (Factor)
Factual Information
On August 14, 2017, about 1017 central daylight time, a Piper PA22-135 airplane, N2591A, was substantially damaged during a forced landing following a partial loss of engine power near Beckville, Texas. The pilot sustained minor injuries. The airplane was registered to and operated by private individuals as a Title 14 Code of Federal Regulations Part 91 flight. Day visual meteorological conditions prevailed. The flight was not operated on a flight plan. The pipeline surveillance flight originated from Cypress River Airport (24F), Jefferson, Texas, about 0800. The intended destination was the Gladewater Municipal Airport (07F), Gladewater, Texas.
The pilot reported fueling the airplane at 24F before departing on his planned pipeline surveillance route. About 2 hours into the flight, en route to 07F, the engine began running rough. He initially established a course to Panola County Airport (4F2) about 8 miles away. However, the engine was not producing enough power to maintain altitude. He subsequently executed a forced landing to a pasture, which resulted in substantial damage to the left wing.
A postaccident engine examination revealed that the no. 3 cylinder exhaust valve fractured at the stem seat. The intake valve appeared intact. The cylinder walls exhibited impact and scraping marks consistent with secondary damage from the separated exhaust valve head. The piston had fractured at several locations; the features appeared consistent with overstress fractures. The piston crown exhibited multiple impact marks similar to the cylinder walls.
Metallurgical examination revealed that the fracture surface on the separated valve head was obliterated consistent with secondary mechanical damage after separation from the stem. The mating fracture surface on the stem was relatively undamaged. The fracture features were consistent with torsional loading at fracture. The stem was tapered adjacent to the fracture, and interconnected voids were observed at the fracture surface. Surface oxidation, sub-surface intergranular oxidation and deposits of lead-based compounds were also observed. The presence of the voids, the tapering of the stem, and the oxidation are consistent with high-temperature deformation under stress. Further examination revealed grain structure and sub-surface oxidation consistent with exposure to elevated temperatures over an extended period of time.
The available airplane maintenance records included an entry, dated April 5, 1968, that noted: "major overhaul of engine this date;" the associated tachometer time was 1,153 hours. No subsequent entries regarding an engine overhaul were observed in the records. The most recent annual inspection was completed on April 22, 2017, at 1,770.4 hours tachometer time. The current owner purchased the airplane on April 23, 2017. The most recent engine maintenance consisted of an oil change on August 1, 2017. The tachometer indicated 1,986.5 hours at the accident site.
The engine manufacturer recommended time between overhaul (TBO) was 1,500 hours operating time or 12 calendar years. Federal Aviation Administration regulations do not require Part 91 operators to comply with an engine manufacturer's TBO interval provided the engine meets annual inspection requirements.
History of Flight
Enroute-cruise
Powerplant sys/comp malf/fail
Loss of engine power (partial) (Defining event)
Emergency descent
Off-field or emergency landing
Pilot Information
Certificate: Commercial
Age: 60, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: Lap Only
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 04/18/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 06/26/2016
Flight Time: 5941 hours (Total, all aircraft), 203 hours (Total, this make and model), 240 hours (Last 90 days, all aircraft), 70 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Manufacturer: PIPER
Registration: N2591A
Model/Series: PA22 135
Aircraft Category: Airplane
Year of Manufacture: 1952
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 22-876
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 04/22/2018, Annual
Certified Max Gross Wt.: 2000 lbs
Time Since Last Inspection: 216 Hours
Engines: 1 Reciprocating
Airframe Total Time: 1986 Hours at time of accident
Engine Manufacturer: LYCOMING
ELT: Installed, not activated
Engine Model/Series: O-290-D2
Registered Owner: Steve Chance
Rated Power: 135 hp
Operator: On file
Operating Certificate(s) Held: None
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: GGG, 365 ft msl
Observation Time: 0953 CDT
Distance from Accident Site: 20 Nautical Miles
Direction from Accident Site: 323°
Lowest Cloud Condition: Scattered / 1000 ft agl
Temperature/Dew Point: 27°C / 26°C
Lowest Ceiling: None
Visibility: 8 Miles
Wind Speed/Gusts, Direction: 8 knots, 230°
Visibility (RVR):
Altimeter Setting: 29.91 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Jefferson, TX (24F)
Type of Flight Plan Filed: None
Destination: Gladewater, TX (07F)
Type of Clearance: None
Departure Time: 0800 CDT
Type of Airspace: Class G
Wreckage and Impact Information
Crew Injuries: 1 Minor
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Minor
Latitude, Longitude: 32.243611, -94.455833 (est)
NTSB Identification: CEN17LA317
14 CFR Part 91: General Aviation
Accident occurred Monday, August 14, 2017 in Beckville, TX
Aircraft: PIPER PA 22-135, registration: N2591A
Injuries: 1 Minor.
This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
On August 14, 2017, about 1017 central daylight time, a Piper PA22-135 airplane, N2591A, was substantially damaged during a forced landing following a partial loss of engine power near Beckville, Texas. The pilot sustained minor injuries. The airplane was registered to and operated by private individuals as a 14 Code of Federal Regulations Part 91 flight. Day visual meteorological conditions prevailed. The flight was not operated on a flight plan. The pipeline surveillance flight originated from Cypress River Airport (24F), Jefferson, Texas, about 0800. The intended destination was the Gladewater Municipal Airport (07F), Gladewater, Texas.
The pilot reported fueling the airplane at 24F before departing on his planned pipeline surveillance route. About 2 hours into the flight, en route to 07F, the engine partially lost power. His efforts to restore full power were unsuccessful. Unable to maintain flight, the pilot executed a forced landing to a pasture.
A detailed examination of the airplane is planned after recovery from the accident site.
PANOLA COUNTY, TX (KLTV) - An East Texas plane crash Monday afternoon sent a Jefferson man to a Marshall hospital.
It happened northwest of the intersection of FM 1794 and Highway 59 in northern Panola County.
First Responders say the pilot himself called 911.
The plane was in a pasture near a pond leaning on its nose. The landing gear and prop were damaged, and although the pilot received a pretty bad cut on his head he stayed on the phone with 911 while multiple agencies searched for him, including Panola County Constable Bryan Murff.
“We attempted to locate the plane. Actually a company plane; another plane had come in and located him for us,” Murff said.
Marshall Fire Chief Reggie Cooper was also at the scene.
“Too much is a whole lot better than not enough,” Cooper said.
Seven different departments responded to the crash, and they had a hard time locating it, but determination paid off.
“This is a different type of situation where we actually know this individual. In actuality he is a retired firefighter from Marshall Fire Department,” Cooper revealed.
Charles Mayo was a captain and had been a pilot for many years. The Chief said that Mayo was bleeding but was conscious and walking around.
“He was able to tell us exactly what happened. Of course, he works for this pipeline company and while flying he lost power to his aircraft,” Cooper explained.
The Chief says Mayo couldn’t get over to Panola County Airport.
“If there’s any pilot you want flying you he’d be the one because he was trying his best to get that thing landed in an open field. And so because of the terrain he was unable to get his nose up and so, that’s where the crash occurred,” Cooper relayed.
Cooper also said a Carthage firefighter drove Mayo through the mud to a waiting ambulance.
“He was able to communicate to the dispatcher that he had lost a lot of blood, and for this individual to say that it was more than likely a lot of blood that was lost,” Cooper added.
Chief Cooper also said when Mayo retired, he vowed to never get in another ambulance, but he thought getting in was the best choice, all things considered.
The FAA will be investigating the reason the Piper PA-22-135 Tri-Pacer went down.
Story and video ➤ http://www.kltv.com
PANOLA COUNTY, TX (KLTV) - The pilot involved in a plane crash this morning has been identified.
Charles Flay Mayo, 60, of Jefferson, and retired Captain of the Marshall Fire Department, was piloting the plane Monday when it crashed south of Marshall.
Mayo was taken to Good Shepherd hospital with a severe laceration to his head.
DPS officials said troopers are currently on scene awaiting the arrival of FAA.
About 11 a.m., crews responded to a location off of Highway 59, south of Marshall in response to a crash.
Harrison and Panola County officials, Marshall Fire EMS, Carthage Fire Department, Beckville Fire Department, DPS, and Allegiance EMS responded to the crash, which occurred near the Harrison-Panola county border line.
DPS says Mayo reported to emergency officials that he had crashed his small plane while checking pipelines.
The plane is registered out of Arbela, Missouri and has been identified as a Piper PA-22-135 Tri-Pacer.
Story, video and photo gallery ➤ http://www.telemundoamarillo.com
(PANOLA COUNTY, TX) - First responders have found the pilot of this morning's single engine plane crash, conscious and alert, and are currently transporting him. He suffered a severe laceration to his head, but is walking on his own, emergency officials reported.
The crash happened northeast of Beckville in Panola County. According to Marshall Fire Chief Reggie Cooper, the site of the crash is off County Road 2691.
“The plane's pilot is injured but conscious," Cooper said.
The pilot reported he had crashed his Piper PA-22-135 Tri-Pacer while checking pipelines.
Story and video ➤ https://www.ktbs.com
BECKVILLE, Texas (KETK) - Emergency crews responded Monday morning to a plane crash in Panola County.
According to a DPS spokesperson, a pilot called 911 and reported he had crashed his small plane while checking pipelines off of CR 2691. Officials stated the plane was down near the city of Beckville.
The FAA identified the plane as a 1952 Piper PA-22-135 Tri-Pacer. It is registered out of Arbela, Missouri.
The single-engine aircraft went down slightly after 10 a.m., according to the Marshall Fire Department. The man told fire officials lost power to the plane and he was trying to make it to Carthage before crashing in a field.
The pilot suffered a laceration to his head and was taken to a Marshall hospital, but he is expected to make a full recovery. He has been identified as Charles Flay Mayo, 60, of Jefferson.
The FAA is investigating the incident.
More than seven agencies were involved in the response.
Original article ➤ http://www.easttexasmatters.com
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