CHI06FA109 · Robinson R22 Beta
Robinson R22 Beta · Accident: total loss of engine power (non-mechanical) while maneuvering
From Chelsea, MI to an unrecorded destination
Event
- NTSB case
- CHI06FA109
- 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
- 2 · 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
- General aviation
- 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
Robinson R22 Beta
- Aircraft type
- Robinson R22
- 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
- N887BC
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Chelsea, MITo not recorded
- 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
- Part 91: General Aviation
- 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
- First occurrenceThe 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
- Total loss of engine power (non-mechanical)
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Fuel contamination; Tree(s)
- 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
- Fluid, fuel › Contamination, water
- Pilot in command › Aircraft preflight, inadequate
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
A private pilot was operating the helicopter as a local personal flight when it collided with trees and terrain during a forced landing. Witnesses related that the helicopter appeared to lose power, as if it ran out of gas, and that it came down fast, toward a road. The helicopter subsequently struck trees and terrain. An on-scene inspection disclosed no evidence of any preimpact mechanical anomalies with either the flight controls or engine. Fuel samples were collected from the helicopter's carburetor and fuel tanks. Analysis disclosed water in the carburetor fuel, but none in the fuel tanks. A fuel sample was also taken from the pilot's storage tank at his residence, which was under a building without rain gutters. The fuel from the storage tank had a layer of water and sediment. Detailed analysis of the water and sediment found in the carburetor fuel indicated that the contamination was consistent with run-off from a building's roof. The helicopter's engine was provided fresh fuel and operated successfully. During the investigation, an aviation mechanic related that about two weeks before the accident, the pilot had lost one of the helicopter's fuel caps, and had obtained a replacement cap.
Probable cause
The pilot's inadequate preflight inspection of the helicopter that failed to discover water in the fuel, resulting in a loss of engine power while maneuvering, and an in-flight collision with trees and terrain. Factors associated with the accident were inadequate fuel storage, and the low altitude of the helicopter.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CHI06FA109
- Event ID
- 20060419X00457
- Case number
- CHI06FA109
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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, coordinates. 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: 8e7ac263b56bd30ff106bea5cdc4da478e0fd986d13b9327dd12dc8a2642b744; retrieved 2026-09-20T17:25:16.219Z.