ERA10CA399 · Schweizer 269C
City of Jacksonville Mosquito Control Schweizer 269C · Accident: loss of tail rotor effectiveness while maneuvering
From Mosquito Control Heliport (FA41) to Baldwin, FL
Event
- NTSB case
- ERA10CA399
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- Government
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Schweizer 269C
- Aircraft type
- Schweizer 269
- Category
- Helicopter
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N6143K
- Onboard fatalities
- Unknown
- Route
- From Mosquito Control Heliport (FA41), Jacksonville, FLTo Baldwin, FL
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Public Aircraft
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Maneuvering · hover
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of tail rotor effectiveness
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
According to the pilot of the helicopter, during a mosquito breeding inspection flight he entered a hover about 2 feet above a field of tall vegetation and "within 10-15 seconds the nose of the aircraft began to yaw to the right." The pilot corrected with full left anti-torque pedal and attempted to "enter into translational lift" as the helicopter continued to rotate. The right skid contacted the ground and the helicopter rolled onto its side, sustaining substantial damage to the main rotor blades, fuselage, and skids. The pilot reported that there were no mechanical malfunctions of the helicopter prior to the accident. He recommended that, "inspection during a cooler part of the day or with presence of wind, or inspecting while moving forward could have prevented the accident." About the time of the accident an airport weather station about 6 miles southeast of the accident site reported variable winds at 5 knots and a temperature of 31 degrees Celsius.
Probable cause
A loss of tail rotor effectiveness during a hover.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA10CA399
- Event ID
- 20100805X80822
- Case number
- ERA10CA399
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 25e5aee314e82b8433f8e4a0a884b3a2fc26b40543e2e53dbd7c04ad1d62a6eb; retrieved 2026-09-15T14:47:58.500Z.