Event Sequence
On 23 July 2024, after departure from Zurich Airport (ZRH), an Embraer E195LR (registration SP-LNB) was climbing in FLAP 1 configuration and before acceleration began, a SLAT FAIL message appeared. In accordance with the SLAT/FLAP FAILURE procedure, the crew consulted the Quick Reference Handbook (QRH) and executed the required checklist. Despite completing all prescribed actions, the malfunction persisted. The crew then assessed the limitations from the QRH and evaluated fuel consumption with flaps and slats in the 1+3 position. They decided to continue the flight to the intended destination, Warsaw Chopin Airport (EPWA). The remainder of the flight proceeded without further issues, and after landing, the remaining fuel was 2100 kg.
Relevant Information
The QRH operational limitations allowed continued flight at altitudes no higher than FL200 and required landing approaches at Vref FULL + 20. For the SLAT/FLAP FAILURE condition, the calculated required landing distance was 1390 meters. The aircraft was flown with flaps and slats in the 1+3 position and at speeds below 230 knots. Fuel analysis showed that the available fuel was sufficient for safe continuation to the destination while maintaining the minimum required diversion reserve of 1800 kg.
Conclusions
The investigating commission determined that the actions taken were in accordance with established procedures and that no safety threat occurred. The cause of the incident was a malfunction of the Flap/Slat Control System.