On September 27, 2021, an EMBRAER 190-100 IWG (registration YV2964) operated by CONVIASA. was involved in an aviation accident near PISTA 10/28 DEL AEROPUERTO INTL. “SIMÓN BOLÍVAR”,, VE. This summary draws on records from the Venezuelan Civil Aviation Accident Investigation Board (JIAAC Venezuela); 8 related events involving the same aircraft type or operator are linked below.
On 27 September 2021, Conviasa Embraer ERJ-190-200 IWG YV2964 aborted takeoff from Maiquetía after the right engine limited power to 40% high-pressure turbine RPM. No injuries or damage were reported.
Incident overview and aircraft details On 27 September 2021 at 15:24 UTC, Conviasa (Consorcio Venezolano de Industrias Aeronáuticas y Servicios Aéreos S.A.) aircraft registration YV2964 began a commercial flight from Simón Bolívar International Airport (SVMI) in Maiquetía, Estado La Guaira, Venezuela, to Viru Viru International Airport (SLVR) in Santa Cruz de la Sierra, Bolivia. During the takeoff roll, the right engine failed to reach the required performance parameters and automatically reduced power, limiting high-temperature turbine RPM to 40%. The pilot in command decided to abort the takeoff and return to the terminal. All occupants were unharmed, and the aircraft sustained no damage. The aircraft was an Embraer S.A. ERJ-190-200 IWG, serial number 19000646, a land-based twin-engine turbofan transport aircraft with retractable tricycle landing gear. It was configured for 124 passengers and five crew members: a pilot, a copilot, and three cabin attendants. The aircraft had FAA Type Certificate A57NM and a maximum takeoff weight of 115,278 lb (52,290 kg). Its two General Electric CF34-10E6 engines, mounted under each wing, had a maximum thrust of 20,360 lb. ## Crew, weather, and investigation activities The pilot in command was 49 years old and held an INAC medical certificate, Airline Transport Pilot license, E190 captain type rating, and instrument rating. He had 3,853 total flight hours, including 1,630.48 hours as pilot in command. The copilot was 43 years old and held an INAC medical certificate, Commercial Pilot license, E190 copilot type rating, and instrument rating, with 1,380 flight hours. Weather conditions were reported as winds from 20° at 5 kt, unlimited visibility, and generally good conditions throughout the day. The investigation included coordination with Conviasa’s Safety Management System (SMS), review of flight dispatch documentation, NOTOC, weight and balance calculations, passenger manifest, and flight plan; interviews with the flight crew; a working session with the operator’s maintenance management; and requests for aircraft, crew, and maintenance records. Investigators performed a visual inspection and photographic documentation of the aircraft’s external structure and the right engine (engine 2) after the incident, as well as an internal inspection of engine 2. ## Technical findings and pending actions During the internal engine inspection, the computer that records aircraft system faults was reviewed. The fault codes, when checked against the engine manuals, indicated that the variable-stator-vane (VSV) position sensors in the high-pressure compressor showed a difference greater than 5%. As a result, the system limited high-pressure compressor RPM and prevented acceleration. To determine the cause of the sensor discrepancy, investigators examined the system that controls the vane angle. They found two rods that move the ring rotating the vane links were bent. After disassembling the assembly, sticking of the vane shafts was observed. The rods were forced and failed by buckling, producing different position readings in the sensors. The flight data recorder and cockpit voice recorder were not removed because Conviasa’s OMAC (N 431) did not then have the capability to download and analyze the data. The company stated it was in the process of recovering that capability. Full custody of the aircraft was returned to the operator. At the time of the preliminary report, the investigation was in the technical, operational, and documentary analysis phase. Pending actions included Conviasa’s SMS informing the JIAAC of corrective actions for the right-engine fault and keeping the JIAAC updated on the recovery of OMAC capability to download FDR and CVR data. ## Preventive measures and notifications Based on preliminary findings and evidence, the JIAAC issued preventive measures recommending that the operations manual be reviewed to establish ground verification procedures for off-runway power checks, so that a power fault would not lead to an aborted takeoff phase. In accordance with Chapter 4 of Annex 13 to the Convention on International Civil Aviation, the incident was reported through form JIAA/NAI 044/2021 to the ADREP system and to ICAO. Email notifications were also sent to the accident investigation authorities of the interested States, including the State of Design and State of Manufacture, to the accident and incident investigation authority of Brazil. The preliminary report was issued by the Dirección General de la Oficina Administrativa para la Seguridad del Transporte in Caracas on 11 October 2021. All times in the report are UTC; Venezuela legal time is UTC-4:00.