Casualties unknown

Partial Engine Power Loss Leads to Loss of Control During Take-off in Portugal (CS-USI)

Montargil, PT

On November 10, 2023, an ULM BRM Citius Sport (registration CS-USI) was involved in an aviation accident near Montargil, PT. This summary draws on records from the Portuguese Office for the Prevention and Investigation of Accidents in Civil Aviation and Rail (GPIAAF).

Sourcesthe Portuguese Office for the Prevention and Investigation of Accidents in Civil Aviation and Rail (GPIAAF)Primary reportUpdated 2026-10-18Data APIEditorial standards

On 10 November 2023, a BRM CITIUS SPORT aircraft experienced a partial loss of engine power during take-off at Foros do Mocho, Portugal, resulting in loss of control.

Incident Overview

On 10 November 2023, at 10:54 UTC, a BRM CITIUS SPORT aircraft, registration (F)-87IW, suffered a partial loss of engine power during take-off. The event occurred at Foros do Mocho, in the Montargil area of Portugal. Subsequently, the pilot lost control of the aircraft in flight.

Aircraft and Flight Details

The aircraft involved was a BRM CITIUS SPORT, a kit-built aircraft operated as a private flight. The accident occurred during the take-off phase. Specific details regarding the flight's origin, destination, or occupants were not disclosed in the investigation report.

Investigation

The Portuguese Office for the Prevention and Investigation of Accidents in Civil Aviation and Rail (GPIAAF) conducted the safety investigation. The final report, numbered 2023/ACCID/06, was published on 8 November 2024. The investigation covered various aspects including the fuel system, airworthiness, weight and balance, and meteorological conditions. The report concluded that the accident involved a loss of control inflight after a partial loss of engine power during take-off.

Aftermath

The report did not specify injuries, damage, or fatalities. The wreckage was examined as part of the investigation. No safety recommendations were explicitly mentioned in the provided source.

Conclusion

The accident underscores the challenges of managing partial power loss during a critical phase of flight. The investigation results are intended to improve aviation safety.

Frequently asked questions

What happened in the 10 Nov 2023 ULM BRM Citius Sport accident near Montargil, PT?

On 10 November 2023, a BRM CITIUS SPORT aircraft experienced a partial loss of engine power during take-off at Foros do Mocho, Portugal, resulting in loss of control.

What aircraft was involved and where did it happen?

The accident on 10 Nov 2023 involved an ULM BRM Citius Sport, registration CS-USI, at Montargil, PT.