CEN11LA093

NTSB accident investigation · Piper PA-28-140 · Ponca City, OK · December 4, 2010

Accident · FatalLimited investigationFinal report
Date
December 4, 2010, 12:45 local (18:45 UTC)
Place
Ponca City, OK
Injuries
1 fatal, 1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8320RPiper PA-28-140
Defining event
Landing: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report November 22, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Flight Standards District Office
FAA report
20101204053909A
Case key
77935

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 loss of control during landing for undetermined reasons.

Findings · 4

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.

Action: incorrect action performancePersonnel issues › Action/decision · PilotPiper PA-28-140: 15 casesAll aircraft: 1,386 casesProbable cause
Performance/control parameters: lateral/bank controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-28-140: 3 casesAll aircraft: 390 casesProbable cause
Wind: high windEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentPiper PA-28-140: 1 caseAll aircraft: 112 cases
Not determinedNot determined › Not determined · Unknown/Not determinedPiper PA-28-140: 27 casesAll aircraft: 2,247 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

A witness reported that the airplane rolled inverted on final approach and then impacted the ground. A postaccident examination of the accident site and airplane revealed the airplane bounced several times during landing and the left wing struck the ground, separating it from the fuselage. The airplane became inverted, skidded across the grass median and taxiway, and collided with a chain link fence. Recorded wind at the time of the accident were aligned with the runway heading at 12 knots, gusting to 21 knots.

Factual narrative

HISTORY OF FLIGHT On December 4, 2010, approximately 1245 central standard time, a Piper PA-28-140, N8320R, was substantially damaged when it collided with terrain and a fence while attempting to land at Ponca City Municipal Airport (PNC), Ponca City, Oklahoma. Visual meteorological conditions (VMC) prevailed at the time of the accident. The personal flight was being conducted under the provisions of 14 Code of Federal Regulations (CFR) Part 91 without a flight plan. The pilot was seriously injured and the passenger was fatally injured. The flight originated at Seminole (H45), Oklahoma, approximately 1115. According to the passenger's father, his son and the pilot were flying to Ponca City to have lunch. A lineman saw the airplane approaching runway 35, but turned away and did not see the accident. According to television news reports, there was one eyewitness. Efforts to contact the witness were unsuccessful, but he stated on camera that he was headed to work and was approaching the intersection of Ash and Hartford. He saw the bottom of the plane facing him and it rolled inverted and crashed. Emergency personnel received the 9-1-1 call at 1247. A Federal Aviation Administration (FAA) inspector who responded to the scene said he found evidence that the airplane landed on runway 35 and bounced. PERSONNEL (CREW) INFORMATION The pilot, age 30, held a private pilot certificate with an airplane single-engine land rating. He also held a third class airman medical certificate, dated January 14, 2009, with no restrictions or limitations. His last flight review was dated April 23, 2009, when he took the private pilot practical test. The pilot's logbook was made available for inspection. The logbook contained entries from December 20, 2008, through November 27, 2010. According to the logbook, the pilot soloed in a Cessna 172 on February 14, 2009, and was issued his private pilot certificate on April 23, 2009. The pilot began flying the Piper PA-28-140 on August 28, 2010. In addition to the pilot's logbook, a copy of the airplane's daily flight record was made available for inspection. The entries coincided with those in the pilot's logbook, and contained two additional entries: a flight made on the day of the accident for 0.6 hours, and the accident flight. The Hobbs Meter reading prior to the accident flight was 467.2. The Hobbs Meter reading at the accident site was 468.7, a difference of 1.5 hours. Combining these two documents, the following represents the pilot's flight time (in hours): Total time: 132.8 Pilot-in-Command/Solo: 95.3 Cessna 172: 92.1 Piper PA-28-140: 40.7 Night: 3.8 Simulated Instrument: 3.6 Actual Instruments: 0.5 Cross-country: 24.8 Total Flight Instruction Received: 42.8 Flight Instruction Received, PA-28-140: 2.2 The student pilot-passenger, age 23, did not hold a pilot certificate. He applied for medical certification in January 2003, and on September 8, 2010. FAA sent him a letter on October 18, 2010, requesting additionalmedical information. When he did not respond, FAA issued a letter of denial on December 2, 2010. On the two medical certificate applications, he estimated his flight time to be 11.7 hours and 25 hours, respectively. AIRCRAFT INFORMATION N8320R (serial number 28-22191) was manufactured by the Piper Aircraft Corporation in 1966. It was powered by a Lycoming 0-320-E2A engine (serial number L-17391-27A), upgraded to 160 horsepower, driving a Sensenich 2-blade, all metal, fixed pitch propeller (model number M74DM). According to the maintenance records, annual and 100-hour inspections were completed on July 19, 2010. At that time, the tachometer read 5,477 hours, and the engine had accrued 584 hours since it was overhauled on October 8, 2001. METEOROLOGICAL INFORMATION The following weather was reported at Ponca City (PNC): PNC (1253): Wind, 350 degrees at 12 knots, gusting to 21 knots; visibility, 10 miles; sky condition, clear; temperature, 7 degrees Celcius (C.); dew point, 4 degrees C.; altimeter setting, 30.33 inches of Mercury. WRECKAGE AND IMPACT INFORMATION Evidence found at the scene indicated the airplane struck the ground with its left wing, separating it from the fuselage. The airplane became inverted and skidded across the grass median and taxiway, and collided with a chain link fence. Photographs taken of the airplane's instrument panel disclosed the following: Airspeed Indicator - 0 Directional Gyro - 169 Degrees Turn & Slip - Left bank (2x standard rate turn) Vertical Speed - 100 FPM Down Altimeter - Approximately 1,000 Feet Tachometer - 0; 5,514:30 hours Hobbs Meter - 468.7 Clock - 1:07 (stopped) Magnetos - Both Throttle - Full forward Carburetor Heat - 1/2" Out Boost Pump - On Transponder - 1200 (Mode C) ADF - 278 KHz (Off) Cabin Heat - Off Cabin Air - Off Master Switch - Off Primer - In and Locked Flaps - 2nd Notch (25 Degrees) Control continuity was established, and no anomalies were noted. According to the Ponca City fire chief, his personnel were unable to determine seating positions of the occupants: the passenger was halfway out of the shattered left cabin window, and the pilot was laying on top of him. The chief said neither seatbelt was fastened, and neither seatbelt had been cut. MEDICAL AND PATHOLOGICAL INFORMATION The pilot was airlifted by medevac helicopter to a nearby hospital for treatment of his injuries. He was later tranferred to a rehabilitation hospital. Toxicology testing was not performed. The student pilot-passenger was transported by ambulance to the Ponca City Medical Center where he succumbed to his injuries. According to the autopsy report, death was attributed to Multiple blunt force trauma. According to the student pilot-passenger's toxicology report, there was no carbon monoxide or cyanide in the blood, and there was no ethanol in the vitreous humor. Atropine and Lidocaine, however, were detected in the liver and cavity blood. According to the Ponca City fire chief, paramedics did not administer thesedrugs. According to a spokesperson for the Ponca City Regional Medical Center, both atropine and lidocaine were administered to the patient in a resuscitation attempt.

Aircraft

Registration
N8320R
Reported as
Piper PA-28-140
Category
Airplane
Serial number
28-22191
Airframe hours
5,514
Engine
Lycoming O-320-E2A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Kenneth R. & Matthew T. Green
Registered owner
Kenneth R. & Matthew T. Green
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · July 19, 2010 · 37 hours before
Departed
H45 · Seminole, OK
Destination
PNC · Ponca City, OK
Airport
PNC · Ponca City Regional, runway 35, 7,201 × 150 ft, concrete

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 · 4

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
April 23, 2009
Toxicology
Performed
Flight hours
133 total · 40 in this make and model · 95 as pilot in command · 40 in the last 90 days · 15 in the last 30 days · 2 in the last 24 hours
Role
Student pilot
Age
23
Injuries
Fatal
Certificate
Student
Toxicology
Performed
Flight hours
25 total
Role
Student pilot
Age
23
Injuries
Fatal
Certificate
Student
Toxicology
Performed
Role
Student pilot
Age
23
Injuries
Fatal
Certificate
Student
Toxicology
Performed

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 12 knots, gusting 21
Visibility
10 statute miles
Lowest ceiling
None
Temperature
45 °F, dew point 25 °F
Altimeter
30.32 inHg
Observed at
PNC

Docket · 21

The files NTSB released with the investigation on October 4, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 10.9 MB in all.

NTSB Form 6120.1-2, Pilot-Operator Aircraft Accident ReportItem 1 · .PDF · 501 KBMemorandumItem 2 · .PDF · 46 KBAerial Photograph, Ponca City Regional AirportItem 3 · .PDF · 119 KBSatellite Photograph, Ponca City Regional AirportItem 4 · .PDF · 190 KBStreet Map, Ponca City Municipal AirportItem 5 · .PDF · 64 KBWeather Reports and RecordsItem 6 · .PDF · 44 KBToxicology Reports, Kenneth R. GreenItem 7 · .PDF · 84 KBPhoto 1 - View to the north. The threshold of runway 17 is at far right. Note ground furrows in foreground.Item 8 · .PDF · 662 KBPhoto 2 - View to the south and the departure end of runway 17 (far left).Item 9 · .PDF · 486 KBPhoto 3 - View to the southwest. The airplane veered off runway 17, crossed the grass median and taxiway, and slid into a chain link fence.Item 10 · .PDF · 598 KBPhoto 4 - Ground furrow at the lip of the taxiway. Note the green position light lens fragment in the dirt.Item 11 · .PDF · 1.1 MBPhoto 5 - Scrape marks on the taxiway and ground furrows leading to the airplane's left wing tip.Item 12 · .PDF · 508 KBPhoto 6 - Tire scuff mark on the taxiway.Item 13 · .PDF · 480 KBPhoto 7 - View to the northeast and the direction from which the airplane came. Note the VASI lights (background).Item 14 · .PDF · 1.4 MBPhoto 8 - Looking aft from the inverted empennage toward the runway. VASI lights are in the background. Note taxiway scrapes and ground furrows.Item 15 · .PDF · 392 KBPhoto 9 - View of the right rear of the airplane as it rests against the chain link fence. Note iron beams stored on racks in background.Item 16 · .PDF · 678 KBPhoto 10 - Right side of the inverted airplane.Item 17 · .PDF · 1.0 MBPhoto 11 - Right front of the inverted airplane.Item 18 · .PDF · 660 KBPhoto 12 - View of the left rear of the airplane. Note separated left wing.Item 19 · .PDF · 1.1 MBPhoto 13 - The inverted right wing with the flap deployed.Item 20 · .PDF · 49 KBPhoto 14 - The instrument panel.Item 21 · .PDF · 699 KB

FAA reports on this event · 1

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