Grundy v British Airways Plc

Factual and Procedural Background

The Plaintiff, a long-serving member of Company A's cabin crew, initially employed full-time, transitioned in 1987 to a new support cabin crew (SCC) contract established under a collective agreement known as the Burford Bridge Agreement. This contract allowed flexible working days but lacked annual pay increments and initially excluded pension, paid holiday, and sick pay. In 1994, recruitment of SCC ceased, and part-time crew were offered fixed percentage hours contracts. When the SCC role was abolished in 2002, the Plaintiff opted for a 75% cabin crew contract.

By the time of the proceedings under the Equal Pay Act 1970, the Plaintiff’s pay was significantly lower than that of a male comparator, the Defendant Mr. Wynne, who performed like work and received annual increments. The Plaintiff's claim under the Equal Pay Act alleged pay disparity based on sex, while a concomitant claim under the Sex Discrimination Act 1975 was withdrawn at first instance.

The Employment Tribunal (ET) found in favor of the Plaintiff, concluding that the failure to provide increments to support cabin crew was indirectly discriminatory against women and unjustified. The Employment Appeal Tribunal (EAT) overturned the ET’s finding on disparate impact, focusing instead on the larger, advantaged group and finding no significant disparate impact, but upheld the ET’s decision on justification. The case was then appealed to the Court of Appeal.

Legal Issues Presented

1. Whether the pay disparity between the Plaintiff and the male comparator constituted unlawful sex discrimination under the Equal Pay Act 1970.
2. Whether the Employment Tribunal erred in focusing on the disadvantaged group (support cabin crew) rather than the advantaged group (full-time and part-time cabin crew) in assessing disparate impact.
3. Whether the pay disparity was justifiable as a material factor unrelated to sex.

Arguments of the Parties

Appellant's Arguments (Plaintiff)

• The Employment Tribunal's focus on the smaller disadvantaged group was legally permissible and appropriate for assessing disparate impact.
• Even if the focus on the smaller group was incorrect, the larger group’s statistics were not determinative, and the case should have been remitted for rehearing.

Respondent's Arguments (Company A)

• The EAT was correct to focus on the larger, advantaged group in assessing disparate impact, which showed no significant adverse effect.
• Even if the Plaintiff succeeded on the disparate impact issue, the pay disparity was justifiable on non-sex-related grounds, and thus the claim should fail.

Table of Precedents Cited

Precedent	Rule or Principle Cited For	Application by the Court
Glasgow City Council v Marshall [2000] ICR 196	Interpretation of the Equal Pay Act 1970 harmoniously with the Sex Discrimination Act 1975 and EU law; employer must disprove sex discrimination to justify pay disparity.	Supported the principle that if sex discrimination is evidenced, employer must objectively justify pay differences.
Strathclyde Regional Council v Wallace [1998] ICR 205	Harmonious construction of Equal Pay Act with Sex Discrimination Act and EU law concerning sex discrimination and justification.	Referenced for the legal framework on sex discrimination and pay disparities.
Allonby v Rossendale College [2001] ICR 1189	Definition of the relevant pool for comparison in discrimination claims.	ET used this case to consider the pool for comparison as all cabin crew categories.
Secretary of State for Trade and Industry v Rutherford (No. 2) [2006] ICR 785	Determining the appropriate pool for assessing disparate impact in discrimination claims under EU law and Equal Pay Act.	Central to the debate on whether to focus on advantaged or disadvantaged groups; emphasized fact-sensitive nature and absence of universal rule.
Chaudhary v BMA [2007] EWCA Civ 789	Assessment of pool in indirect discrimination claims; relevance of selecting a suitable pool.	Used to illustrate that the choice of pool depends on the specificity of the discrimination complaint.
Armstrong v Ministry of Defence [2004] IRLR 672	Broader concept of indirect discrimination under the Equal Pay Act in light of EU law.	Supported the approach that tribunals should identify causative links between sex and pay disparities considering social and historical factors.
Price v Civil Service Commission [1978] ICR 27	Choice of appropriate pool for indirect discrimination claims.	Illustrated the principle that the pool should sensibly reflect the group affected by the disputed rule.
Doherty v Birmingham City Council [2006] EWCA Civ 1739	Need for clear majority judgments to guide lower courts.	Referenced in commentary on the complexity and fragmentation of appellate decisions.
OBG Ltd v Allan [2007] UKHL 21	Judicial practice regarding clarity and unity of appellate judgments.	Quoted to emphasize the desirability of clear, majority opinions for guidance.

Court's Reasoning and Analysis

The court began by summarizing the statutory framework under the Equal Pay Act 1970, which mandates equality clauses in women's contracts, requiring terms no less favorable than those of men doing like work unless a material, non-sex-related factor justifies differences. The court acknowledged the interplay between the Equal Pay Act, the Sex Discrimination Act 1975, and EU law (Article 141 EC), emphasizing that any pay disparity must be assessed for sex discrimination, direct or indirect.

The Employment Tribunal had focused on the disadvantaged group (support cabin crew), finding a significant disproportionate adverse impact on women due to the absence of pay increments. The EAT reversed this focus, holding that the pool for assessing disparate impact should be the larger advantaged group, which showed no significant disparity, thereby negating the claim of indirect discrimination.

The Court of Appeal rejected the EAT’s legal error in mandating focus solely on the advantaged group, emphasizing that the choice of pool is a question of fact and logic rather than fixed legal principle. The court held that the Employment Tribunal’s choice to focus on the disadvantaged group was a legitimate factual finding supported by the evidence, particularly given the specific nature of the Plaintiff’s claim and the need to compare like with like.

Regarding justification, the court noted that the issue was reserved for further argument but recognized that the burden rests on the employer to prove a non-sex-related material factor justifying the pay disparity. The court acknowledged that the pay difference was substantial and undisputed.

The court also commented on the broader judicial context, lamenting the lack of clear majority judgments in appellate decisions on complex discrimination law, which hampers clarity for tribunals and parties.

Holding and Implications

The Court of Appeal ALLOWED the Plaintiff's appeal on the issue of disparate impact, holding that the Employment Tribunal did not err in focusing on the disadvantaged group to assess indirect discrimination. The Court found no legal principle requiring exclusive focus on the advantaged group and upheld the Employment Tribunal's factual findings of disparate impact.

The issue of justification was remitted for further consideration, with the employer bearing the burden to prove a valid, non-sex-related reason for the pay disparity.

The direct effect is that the Plaintiff’s claim of pay discrimination under the Equal Pay Act 1970 proceeds on the basis that the pay disparity is not excused by lack of disparate impact. No new legal precedent was set beyond affirming the fact-sensitive nature of pool selection in indirect discrimination claims and the absence of a universal rule mandating focus on the advantaged group.