Incident Overview
On July 13, 2022, at 21:14 UTC, an Embraer ERJ-190-100 IGW (registration YV3052, serial 19000675) operated by Consorcio Venezolano de Industrias Aeronáuticas y Servicios Aéreos, S.A. (Conviasa), departed Puerto Ordaz (SVPR) for Maracaibo (SVMC). The aircraft carried 86 persons on board, including five crew members and 80 passengers.
Operational Sequence
During the initial climb, the Electronic Integrated Centralized Aircraft System (EICAS) displayed two amber caution messages: "BLEED 1 OVERPRESS" and "BLEED 2 OVERPRESS." The flight crew executed the Quick Reference Handbook (QRH) procedures, which cleared the alerts. However, subsequent monitoring at FL200 revealed conflicting indications on the cabin altitude and pressure instruments.
Considering the flight time and distance to the destination, the crew decided to divert to the alternate airport, Simón Bolívar International Airport in Maiquetía (SVMI). They requested a lower flight level of FL120 to stabilize the indicators. The aircraft landed safely at SVMI with no injuries reported among passengers or crew.
Aircraft and Maintenance Details
The aircraft is a twin-engine jet powered by General Electric CF34-10E6 engines, certified for 109 seats. At the time of the incident, the aircraft held a valid airworthiness certificate and insurance. The maintenance organization responsible for recent services was OMAC-N 431B1 Conviasa, located at Maiquetía.
Investigation Findings
Following the event, investigators from the Joint Investigative Board of Civil Aviation Accidents (JIAAC) conducted an examination with the maintenance team. They identified a damaged component: Part No. 73030-1001246-1, a High Stage Valve (Model EC70B, Serial No. 2008050985). The valve was removed in accordance with the Embraer 190 AMM 4620 manual and replaced with a new unit (Serial No. 2010020912).
Regulatory Notifications
In compliance with Annex 13 of the Chicago Convention, the incident was reported to the ICAO ADREP system. The State of Design and Manufacture, Brazil, was notified via email. As of the preliminary report date (July 22, 2022), no receipt confirmation had been received from the Brazilian aviation authority.