- Date
- May 1, 2016, 11:30 local (16:30 UTC)
- Place
- Ponca City, OK
- Injuries
- 1 serious, 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N8619GCessna 150F
- Defining event
- Landing-flare/touchdown: Part(s) separation from AC
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 20, 2017
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- Federal Aviation Administration
- FAA report
- 20160501008409A
- Case key
- 93176
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
Maintenance personnel's improper installation of the elevator bolt, which resulted in a loss of elevator control during landing.
Findings · 3
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.
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 private pilot stated that, during the landing flare at the conclusion of a local flight, the airplane's nose "shot up drastically." The pilot "gently" pressed forward on the controls to lower the nose, and the airplane pitched down and impacted the runway. Examination of the airplane revealed that a bolt that attached the left elevator to the control system was not installed, and the FAA inspector reported that the bolt was found undamaged inside the elevator tip. According to the pilot, maintenance personnel had recently removed the left elevator, and it is likely that they failed to properly secure the bolt when they reinstalled the elevator.
Factual narrative
On May 1, 2016, about 1130 central daylight time, a Cessna 150F, N8619G, experienced a loss of pitch control during landing flare and impacted runway 35 at Ponca City Regional Airport, Ponca City, Oklahoma. The airplane sustained substantial damage to the firewall. The pilot sustained serious injuries and the passenger was uninjured. The airplane was operated by the pilot under 14 Code of Federal Regulations Part 91 as a personal flight that was not operating on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The local flight originated from PNC about 1045. The pilot stated that he performed a "full" preflight inspection of the airplane prior to departing for a pleasure flight. The flight returned without incident for an approach for landing to the airport. During landing flare on runway 35 and about 1-2 feet above runway, the airplane "shot up drastically". The airplane climbed about 10-20 feet, the pilot "gently" applied forward control pressure on the control yoke, and the airplane "instantly" pitched down and impacted the runway. The pilot stated that as he waited for an ambulance, he saw the left elevator was separated from the horizontal stabilizer. An airplane maintenance record entry dated November 9, 2015, shows that an annual inspection had been performed and that the bearing in the elevator bearing crank assembly was "reset" by an airframe and powerplant mechanic with inspection authorization. The airplane accumulated about 25 hours of flight time after the annual inspection. Post-accident examination of the airplane by a Federal Aviation Administration (FAA) inspector revealed that a bolt that links the left elevator to the control system was missing. The bolt was found inside the left elevator tip. The FAA Inspector reported that there was an improper reinstallation of the elevator, which resulted in it coming loose.
Aircraft
- Registration
- N8619G
- Reported as
- Cessna 150F
- Category
- Airplane
- Serial number
- 15062719
- Built
- 1965
- Airframe hours
- 3,234.9
- Engine
- Continental O-200-A, 100 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Pilot
- Registered owner
- Harbor Aviation LLC
- Airworthiness certificate
- Standard, Utility
- Last inspection
- Annual · November 9, 2015 · 25 hours before
- Departed
- PNC · Ponca City, OK
- Destination
- PNC · Ponca City, OK
- Airport
- PNC · Ponca City Regional Airport, runway 35, 7,201 × 150 ft, concrete
- Equipment
- Stall warning system
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
- 52
- Injuries
- Serious
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Seat
- Left
- Restraint
- Lap only
- Flight hours
- 550 total · 540 in this make and model · 30 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 300° at 10 knots, gusting 18
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 55 °F, dew point 41 °F
- Altimeter
- 30.10 inHg
- Observed at
- PNC
Docket · 3
The files NTSB released with the investigation on May 11, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.5 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.