20210520009589A

Accident · Substantial damage

FAA accident report · Mooney M20K · Dawson, GA · May 20, 2021

Date
May 20, 2021 · 09:45 local
Place
Dawson, GA
Airport
Dawson Georgia Municipal Airpo
Phase of flight
Cruise/Level Flight
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N9514R
NTSB investigation
NTSBERA21LA222
Reported as
Mooney M20K
Reported engine
Continental TSIO-360 series
People aboard
2
Fatal injuries
0
Other injuries
2
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
1,030 total

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

On may 20, 2021, at approximately 0945 eastern daylight time, a 1980 Mooney, M20K19, with registration N9514R, sustained major damage while attempting an emergency landing as a result of a catastrophic engine failure. The accident occurred 13 miles northwest of Dawson, Georgia municipal airport (16J). There were two persons on board with severe injuries and were medevacked to a hospital in birmingham, Alabama. Visual meteorological conditions prevailed, and no flight plan was filed. This was a personal flight being conducted under the provisions of title 14 code of federal regulations part 91.

On may 20, 2021, at approximately 0830 eastern daylight time, N9514R departed orlando apopka airport (X04) direct to birmingham-shuttlesworth international airport (bmh). While cruising at 8500 feet the aircraft suddenly experienced a complete engine failure. The PIC immediately declared an emergency direct to Dawson municipal airport (16J). Unfortunately, the aircraft was unable to make it to 16J and had to land on a county road. During the landing the aircraft experienced substantial damage to the fuselage, wings, engine and propeller. Due to the hard landing both the PIC and passenger experienced a spinal disc compression and had to be medevacked to birmingham Alabama and are currently undergoing rehabilitation after back surgery.

On June 8, 2021, the aircraft underwent a complete engine tear down under the supervision of an FAA inspector from the atlanta FSDO and a representative of the NTSB. This engine examination occurred at a hangar owned and operated by privacy data omitted located in griffin, Georgia. During the examination it was observed that there was a large hole in the top of the engine crankcase due to an internal engine mechanical failure. After a further examination, it was noted that the likely cause of the mechanical failure started with the number 4 cylinder and progressed until complete engine breakdown. Analysis of the engine damaged components revealed that a connecting rod nut came loose during flight due to improper torque and for the lack of a cotter pin being installed. All 12 connecting rods, bolts and nuts were examined for each cylinder and the cotter pin for this particular connecting rod was not located inside the engine housing. The nut for this connecting rod was located in the bottom of the engine without any evidence of wear or tear or it becoming dislodged as a result of the engine failure. All other damaged connecting rods still had the bolts and nuts installed with the cotter pins attached.

As the FAA filed it

ON MAY 20, 2021, AT APPROXIMATELY 0945 EASTERN DAYLIGHT TIME, A 1980 MOONEY, M20K19, WITH REGISTRATION N9514R, SUSTAINED MAJOR DAMAGE WHILE ATTEMPTING AN EMERGENCY LANDING AS A RESULT OF A CATASTROPHIC ENGINE FAILURE. THE ACCIDENT OCCURRED 13 MILES NORTHWEST OF DAWSON, GEORGIA MUNICIPAL AIRPORT (16J). THERE WERE TWO PERSONS ON BOARD WITH SEVERE INJURIES AND WERE MEDEVACKED TO A HOSPITAL IN BIRMINGHAM, ALABAMA. VISUAL METEOROLOGICAL CONDITIONS PREVAILED, AND NO FLIGHT PLAN WAS FILED. THIS WAS A PERSONAL FLIGHT BEING CONDUCTED UNDER THE PROVISIONS OF TITLE 14 CODE OF FEDERAL REGULATIONS PART 91.

ON MAY 20, 2021, AT APPROXIMATELY 0830 EASTERN DAYLIGHT TIME, N9514R DEPARTED ORLANDO APOPKA AIRPORT (X04) DIRECT TO BIRMINGHAM-SHUTTLESWORTH INTERNATIONAL AIRPORT (BMH). WHILE CRUISING AT 8500 FEET THE AIRCRAFT SUDDENLY EXPERIENCED A COMPLETE ENGINE FAILURE. THE PIC IMMEDIATELY DECLARED AN EMERGENCY DIRECT TO DAWSON MUNICIPAL AIRPORT (16J). UNFORTUNATELY, THE AIRCRAFT WAS UNABLE TO MAKE IT TO 16J AND HAD TO LAND ON A COUNTY ROAD. DURING THE LANDING THE AIRCRAFT EXPERIENCED SUBSTANTIAL DAMAGE TO THE FUSELAGE, WINGS, ENGINE AND PROPELLER. DUE TO THE HARD LANDING BOTH THE PIC AND PASSENGER EXPERIENCED A SPINAL DISC COMPRESSION AND HAD TO BE MEDEVACKED TO BIRMINGHAM ALABAMA AND ARE CURRENTLY UNDERGOING REHABILITATION AFTER BACK SURGERY.

ON JUNE 8, 2021, THE AIRCRAFT UNDERWENT A COMPLETE ENGINE TEAR DOWN UNDER THE SUPERVISION OF AN FAA INSPECTOR FROM THE ATLANTA FSDO AND A REPRESENTATIVE OF THE NTSB. THIS ENGINE EXAMINATION OCCURRED AT A HANGAR OWNED AND OPERATED BY ^PRIVACY DATA OMITTED^ LOCATED IN GRIFFIN, GEORGIA. DURING THE EXAMINATION IT WAS OBSERVED THAT THERE WAS A LARGE HOLE IN THE TOP OF THE ENGINE CRANKCASE DUE TO AN INTERNAL ENGINE MECHANICAL FAILURE. AFTER A FURTHER EXAMINATION, IT WAS NOTED THAT THE LIKELY CAUSE OF THE MECHANICAL FAILURE STARTED WITH THE NUMBER 4 CYLINDER AND PROGRESSED UNTIL COMPLETE ENGINE BREAKDOWN. ANALYSIS OF THE ENGINE DAMAGED COMPONENTS REVEALED THAT A CONNECTING ROD NUT CAME LOOSE DURING FLIGHT DUE TO IMPROPER TORQUE AND FOR THE LACK OF A COTTER PIN BEING INSTALLED. ALL 12 CONNECTING RODS, BOLTS AND NUTS WERE EXAMINED FOR EACH CYLINDER AND THE COTTER PIN FOR THIS PARTICULAR CONNECTING ROD WAS NOT LOCATED INSIDE THE ENGINE HOUSING. THE NUT FOR THIS CONNECTING ROD WAS LOCATED IN THE BOTTOM OF THE ENGINE WITHOUT ANY EVIDENCE OF WEAR OR TEAR OR IT BECOMING DISLODGED AS A RESULT OF THE ENGINE FAILURE. ALL OTHER DAMAGED CONNECTING RODS STILL HAD THE BOLTS AND NUTS INSTALLED WITH THE COTTER PINS ATTACHED.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

Other reports on N9514R · 2

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