Case Details
- Citation: [2001] SGCA 69
- Case Number: CA 600016/2001, CA 600017/2001
- Decision Date: 16 October 2001
- Court: Court of Appeal of the Republic of Singapore
- Coram: Chao Hick Tin JA; L P Thean JA; Yong Pung How CJ
- Plaintiff/Applicant: Singapore Airlines Ltd
- Defendant/Respondent: Tan Shwu Leng and another appeal
- Parties (as reflected in the judgment): Singapore Airlines Ltd — Tan Shwu Leng
- Counsel: Ashok Kumar (Allen & Gledhill) for the Appellant in CA 600017/2001; Vangadasalam Ramakrishnan (V Ramakrishnan & Co) for the respondent in CA 600016/2001 and CA 600017/2001
- Legal Areas: Civil Procedure — Appeals; Civil Procedure — Costs; Damages — Mitigation
- Statutes Referenced: Supreme Court of Judicature Act (Cap 322)
- Rules of Court Referenced: O 56 r 1; O 22A rr 9(3) & 12
- Key Issues (as framed): (1) Whether an appeal from a registrar to the High Court is a “true” appeal; (2) Whether Powell Duffryn principles apply; (3) Role/approach of the judge hearing such appeal; (4) Costs consequences under O 22A where damages marginally exceed an offer; (5) Damages mitigation—burden of proof and whether the plaintiff discharged it.
Summary
In Singapore Airlines Ltd v Tan Shwu Leng and another appeal [2001] SGCA 69, the Court of Appeal considered two closely related procedural and substantive questions arising from a personal injury claim assessed by an assistant registrar and then revisited by a High Court judge on appeal. First, the court addressed the correct legal framework for an appeal from a registrar (or assistant registrar) to a judge in chambers: whether such a hearing is effectively a rehearing de novo, and whether the appellate restraint associated with Davies v Powell Duffryn Associated Collieries applies.
Second, the court examined the mitigation of loss and the burden of proof in relation to pre-trial loss of earnings. The plaintiff, a Singapore Airlines leading stewardess, suffered a fracture in her left humerus in a mid-air incident and was grounded. The key dispute was whether she had acted unreasonably in failing to seek alternative employment after learning that she would not be returned to flying duties, particularly during the period following the Asian economic crisis.
The Court of Appeal dismissed both appeals. It upheld the High Court judge’s approach to the assessment appeal and found no error in the judge’s restoration of a sum deducted for alleged failure to mitigate. The court also affirmed the High Court’s costs adjustments under the offer-to-settle regime in O 22A, where the damages ultimately awarded were only marginally higher than the defendants’ offer.
What Were the Facts of This Case?
On 25 November 1994, Ms Tan Shwu Leng (“Ms Tan”) was serving on board a Singapore Airlines flight from Singapore to Dhaka as a leading stewardess when a mid-air incident occurred. The incident caused her to suffer a fracture in her left humerus. As a result of the injury, she could not be certified fit to carry on her duties as a leading stewardess and was therefore grounded. She was assigned other duties, but her capacity to return to her prior role was not immediately restored.
On 3 November 1997, Ms Tan commenced Civil Suit 1906/97 against Singapore Airlines Ltd (“SIA”), claiming damages for negligence and, in the alternative, breach of statutory duty. Airbus Industrie, the aircraft manufacturer, was later joined as a co-defendant. Liability was admitted by the defendants, and on 19 November 1999 interlocutory judgment was entered with damages to be assessed.
The assessment was conducted by an assistant registrar. On 28 September 2000, the assistant registrar awarded Ms Tan $316,025.81, comprising pain and suffering ($13,000), pre-trial loss of earnings ($77,491.60), and loss of future earnings ($225,534.21). Interest was also awarded on the first two items, producing a grand total of $331,855.14.
After the assistant registrar’s award, the costs consequences became significant because the defendants had made an offer to settle under O 22A on 24 January 2000 for $350,000. Since the assistant registrar’s total award (including interest) was less than the offer, the assistant registrar ordered that Ms Tan would be entitled to costs only up to the date of the offer, and she would bear the defendants’ costs incurred after the offer on an indemnity basis. Ms Tan appealed to the High Court judge, Woo Bih Li JC, who increased the damages by restoring two sums to the pre-trial earnings calculation, thereby changing both the quantum and the costs position.
What Were the Key Legal Issues?
The first legal issue concerned the nature and standard of review applicable to an appeal from the registrar (or assistant registrar) to a judge in chambers. SIA argued that the High Court should apply the same appellate restraint as the Court of Appeal applies when reviewing a High Court’s award of damages—namely the Powell Duffryn principles as articulated in Davies v Powell Duffryn Associated Collieries [1942] AC 601. Under that approach, an appellate court should only vary damages if the lower court acted on wrong principles, misapprehended the facts, or made a wholly erroneous estimate.
The second legal issue related to damages mitigation. The assistant registrar had deducted $14,700 from Ms Tan’s pre-trial loss of earnings on the basis that she failed to mitigate her loss between January 1999 and the date of assessment. The High Court judge disagreed and restored the sum, holding that Ms Tan had not acted unreasonably in failing to seek alternative employment in a different industry while she was still employed by SIA and earning a decent salary, and that there was insufficient evidence to show she would likely have obtained alternative employment at a higher salary.
Finally, the case raised costs questions under O 22A. The defendants’ offer was $350,000, and the assistant registrar’s award was less than that offer, triggering a costs regime adverse to Ms Tan. After the High Court judge increased the damages, the total award (including interest) became marginally higher than the offer when interest on the offer was taken into account. This required the court to consider how the O 22A offer-to-settle rules should operate where the final award is only slightly above the offer.
How Did the Court Analyse the Issues?
The Court of Appeal began with the procedural question: whether the High Court hearing of an appeal from the registrar was a rehearing de novo, and whether the Powell Duffryn restraint should apply. The court noted that the principles in Davies v Powell Duffryn are well established for appeals from the High Court to the Court of Appeal in damages matters. It cited Singapore authorities that had accepted and applied those principles, including Chow Khai Hong v Tham Sek Khow [1992] 1 SLR 4, Lim Hwee Meng v Citadel Investment [1998] 3 SLR 601, and Peh Eng Leng v Pek Eng Leong [1996] 2 SLR 305 at 310.
However, SIA’s argument sought to extend those principles to an appeal from the registrar to the High Court. The Court of Appeal identified two earlier decisions that directly addressed this question: Chang Ah Lek v Lim Ah Koon [1999] 1 SLR 82 and Ho Yeow Kim v Lai Hai Kuen [1999] 2 SLR 246. SIA had to overcome these authorities. The court therefore examined the reasoning in Chang Ah Lek in detail, because it was particularly relevant to the procedural posture of the present case.
In Chang Ah Lek, the Court of Appeal had considered an appeal from an assistant registrar’s assessment to a judge in chambers. The court in Chang Ah Lek had examined the statutory and procedural framework. It referred to s 62(1) of the Supreme Court of Judicature Act (Cap 322), which provides that the registrar has the same powers and jurisdiction as masters in England. It then considered O 58 r 1 of the English Rules of the Supreme Court 1965 (analogous to Singapore’s O 56 r 1), which provides for an appeal from the master to the judge in chambers. The court also relied on authoritative commentary in Supreme Court Practice to characterise the judge-in-chambers hearing as an actual rehearing of the application, where the judge treats the matter as though it came before him for the first time. While the judge gives weight to the master’s decision, the judge is not fettered by the master’s exercise of discretion.
Further, Chang Ah Lek had drawn support from the House of Lords decision in Evans v Bartlam [1937] AC 473. That case addressed whether a judge-in-chambers could substitute his discretion for that of a master when hearing an appeal from the master. The House of Lords held that the judge could do so, emphasising that where the appellate court is required to review a discretionary order of a judge reversing the master, the substantial discretion is that of the judge, and it is the judge’s order that must be considered. The Court of Appeal in Chang Ah Lek therefore concluded that the judge-in-chambers hearing is not constrained by the same appellate restraint that applies to appeals from the High Court to the Court of Appeal.
Applying this framework, the Court of Appeal in Singapore Airlines v Tan Shwu Leng rejected SIA’s attempt to import the Powell Duffryn principles into the registrar-to-judge-in-chambers appeal context. The court’s reasoning proceeded from the nature of the statutory and procedural appeal: the judge hearing the appeal is effectively conducting a rehearing and is entitled to reach its own view on the assessment, subject to the general requirements of appellate fairness and legal correctness. The absence of witness observation did not automatically impose the same level of restraint as in a higher appellate tier.
Turning to the substantive mitigation issue, the Court of Appeal focused on whether the High Court judge was justified in restoring the $14,700 deduction. The assistant registrar had reasoned that once Ms Tan learned SIA would not put her back on flying duties, she should have sought alternative non-cabin crew employment after the Asian economic crisis subsided in late 1998 and early 1999. The High Court judge disagreed, finding that Ms Tan had not acted unreasonably in failing to search for alternative employment in a different industry while she remained employed by SIA and was earning a decent salary. The High Court also found that there was insufficient evidence that Ms Tan would have been likely to obtain alternative employment at a higher salary.
The Court of Appeal endorsed the High Court’s approach. It noted that the assistant registrar’s figure of $700 per month used to compute the deduction was arrived at without a proper evidential basis. Where mitigation is alleged, the defendant bears the burden of showing that the plaintiff acted unreasonably and that reasonable steps would likely have reduced the loss. On the record, the evidential foundation for the assistant registrar’s mitigation deduction was inadequate, and the High Court’s restoration of the sum was therefore not erroneous.
Finally, the Court of Appeal addressed the costs consequences under O 22A. The defendants’ offer was $350,000. The assistant registrar’s award was less than the offer, so costs were restricted in favour of the defendants. After the High Court increased the damages, the total award including interest exceeded the offer when the interest that the offer would have earned between the date of the offer and the date of assessment was taken into account. The Court of Appeal accepted that the High Court was entitled to adjust costs accordingly. The practical effect was that Ms Tan’s costs position improved substantially, though the High Court still fixed certain post-offer costs at modest sums, reflecting the court’s discretion under the O 22A regime.
What Was the Outcome?
The Court of Appeal dismissed both appeals. It upheld the High Court judge’s decision to restore the $14,700 deduction relating to alleged failure to mitigate pre-trial loss of earnings. It also upheld the High Court’s costs adjustments under O 22A, which had shifted the costs outcome because the final award (including interest) became marginally higher than the defendants’ offer when properly calculated.
In practical terms, Ms Tan retained the enhanced damages award and the improved costs position. For SIA, the decision confirmed that it could not rely on Powell Duffryn appellate restraint to limit the High Court’s ability to revisit an assistant registrar’s assessment on an appeal to a judge in chambers, and it also confirmed that mitigation deductions require a sound evidential basis.
Why Does This Case Matter?
This decision is significant for civil procedure practitioners because it clarifies the standard and character of an appeal from a registrar/assistant registrar to a judge in chambers under O 56 r 1. The Court of Appeal reaffirmed that such hearings are not governed by the same strict appellate restraint applicable to higher-tier appeals on damages. Instead, the judge conducts an actual rehearing and is not fettered by the earlier assessment, even though the judge has not seen and heard witnesses. This affects how parties should frame their submissions and evidence at the High Court stage when challenging an assessment.
Substantively, the case also illustrates the evidential demands of mitigation arguments in personal injury litigation. Courts will scrutinise whether the defendant has shown that the plaintiff acted unreasonably and whether alternative employment would likely have been obtained at a higher salary. Where the mitigation calculation is based on unsupported assumptions—such as an arbitrary monthly figure—the deduction is vulnerable on appeal.
Finally, the costs analysis under O 22A demonstrates the importance of accurate calculations when an offer-to-settle is close to the eventual award. Even marginal differences can change the costs consequences. Practitioners should therefore treat the O 22A offer regime as a high-stakes procedural tool and ensure that interest and quantum are computed consistently with the rules and the court’s approach.
Legislation Referenced
- Supreme Court of Judicature Act (Cap 322), s 62(1) [CDN] [SSO]
- Rules of Court (Singapore): O 56 r 1
- Rules of Court (Singapore): O 22A rr 9(3) and 12
Cases Cited
- Davies v Powell Duffryn Associated Collieries [1942] AC 601
- Chow Khai Hong v Tham Sek Khow [1992] 1 SLR 4
- Lim Hwee Meng v Citadel Investment [1998] 3 SLR 601
- Peh Eng Leng v Pek Eng Leong [1996] 2 SLR 305
- Chang Ah Lek v Lim Ah Koon [1999] 1 SLR 82
- Ho Yeow Kim v Lai Hai Kuen [1999] 2 SLR 246
- Evans v Bartlam [1937] AC 473
Source Documents
This article analyses [2001] SGCA 69 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.