# NTSB DCA11RA098: M7Aero SW3, Trinidad, Bolivia, September 6, 2011

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Foreign investigation
- Date: September 6, 2011, 19:10 local (23:10 UTC)
- Place: Trinidad, Bolivia
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Defining event: [Approach-IFR initial approach: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120)
- Highest injury: Fatal
- Injuries: 8 fatal, 1 serious
- Status: Led by another country's authority
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 81731
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA11RA098
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/81731/pdf
- Page: https://openairdocs.org/ntsb/DCA11RA098

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Approach-IFR initial approach: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120) (defining event); cases with it: [All aircraft, 1,074 cases](https://openairdocs.org/ntsb-events/120/sequence.md)

## Factual narrative

On September 6, 2011, an Aerocon Swearingen SA-227 Metroliner, registration CP-2548 performing flight A4-238 from Santa Cruz to Trinidad (Bolivia) with 7 passengers and 2 crew, was on approach to Trinidad when radio contact was lost. The airplane was located three days later during search efforts. Six passengers and two crew were fatally injured, and one passenger received serious injuries. The airplane was substantially damaged. The Dirección General de Aeronáutica Civil(DGAC)of Bolivia is investigating the accident. The NTSB designated a U.S. Accredited Representative to assist the DGAC's investigation as the state of manufacture under the provisions of ICAO Annex 13. All inquiries should be directed to: Ministerio de Obras Públicas, Servicios y Vivienda Viceministerio de Transportes Dirección General de Aeronáutica Civil Palacio de Comunicaciones Av. Mcal. Santa Cruz No. 1278 4° Piso La Paz Bolivia Website: www.dgac.gov.bo

## Aircraft

- Registration: CP2548 (not matched to a registry record)
- Reported make and model: M7Aero SW3
- Category: Airplane
- Engines: Honeywell TPE331 turbo prop; Honeywell TPM331 turbo prop
- Damage: Substantial damage
- Flight: Non-U.S., commercial
- Operator: AeroCon
- Registered owner: AeroCon
- Airworthiness certificate: Standard, Transport
- Departed: Santa Cruz
- Destination: SLTR, Trinidad
- Flight plan: IFR
- Airport: SLTR, Trinidad

## Weather

- Conditions: Instrument (IMC), Night
- Visibility: 0.1 statute miles
- Temperature: 81 °F, dew point 68 °F
- Altimeter: 29.92 inHg
- Observed at: SLTR, 9 nm away

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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