Request for a preliminary ruling from the Audiencia Nacional (Spain) lodged on 22 May 2023 — Sindicato de Tripulantes Auxiliares de Vuelo de Líneas Aéreas (STAVLA) v Air Nostrum, Líneas Aéreas del Mediterráneo S. A. and Others

(Case C-314/23, STAVLA)

(2023/C 329/10)

Language of the case: Spanish

Referring court

Audiencia Nacional

Parties to the main proceedings

Applicant: Sindicato de Tripulantes Auxiliares de Vuelo de Líneas Aéreas (STAVLA)

Defendants: Air Nostrum, Líneas Aéreas del Mediterráneo SA, Federación de Servicios de Comisiones Obreras (CCOO), Unión General de Trabajadores (UGT), Unión Sindical Obrera (USO), Comité de empresa de Air Nostrum, Líneas Aéreas del Mediterráneo SA, Dirección General de Trabajo, Instituto de las Mujeres, Ministerio Fiscal, Sindicato Español de Pilotos de Líneas Aéreas (SEPLA), Sindicato Unión Profesional de Pilotos de Aerolíneas (UPPA)

Question referred

Does the fact that the company AIR NOSTRUM compensates a group such as cabin crew, where the majority of the individuals making up the group are women, for the expenses which they have to meet when travelling, other than those related to transport and accommodation, with an amount smaller than that received for the same expenses by another group of employees, such as pilots, in which the majority are men, constitute an instance of indirect discrimination on grounds of sex in relation to working conditions, contrary to European Union law and prohibited under Article 14(1)(c) of Directive 2006/54, (1) where the reason for such different treatment lies in the fact that each group is subject to a different collective agreement, both negotiated by the same company but with different union representatives, pursuant to Article 87 of the Estatuto de los Trabajadores (Spanish Workers’ Statute)?

(1)  Directive 2006/54/EC of the European Parliament and of the Council of 5 July 2006 on the implementation of the principle of equal opportunities and equal treatment of men and women in matters of employment and occupation (recast) — OJ 2006 L 204, p. 23.