Title
Philippine Air Lines Employees Association vs. Philippine Air Lines, Inc.
Case
G.R. No. L-31341
Decision Date
Mar 31, 1976
Dispute over PAL's wage computation method; SC upheld unions' formula, excluded off-days from divisor, ruled pay differentials due from 1953.
A

Case Digest (G.R. No. L-31341)

Facts:

  • Consolidated Cases
    • The case involves consolidated petitions from:
      • G.R. No. L-31341 – PALEA and PALSA versus Philippine Air Lines, Inc. (PAL)
      • G.R. No. L-31343 – PAL versus PALEA, PALSA, and the Court of Industrial Relations (CIR)
    • The disputes arise from the method used by PAL in computing the basic daily and hourly rate of its monthly-salaried employees.
  • Wage Computation Formula
    • PAL’s established wage formula:
      • Basic Daily Rate = (Monthly Salary x 12) ÷ 365
      • Basic Hourly Rate = (Basic Daily Rate) ÷ 8
    • Petitioners’ proposed formula:
      • Advocated computing the basic daily rate by dividing the monthly salary x 12 by the actual number of working days in a year (varying with the enactment of the 40-hour week schedule).
      • This would then be divided by 8 to obtain the basic hourly rate.
  • Chronology of Proceedings
    • February 14, 1963 – PALEA and PALSA initiated an action in the CIR to revise PAL’s wage computation method and to claim accrued salary differentials.
    • May 23, 1964 – The CIR, through Presiding Judge Jose S. Bautista, issued an order denying the unions’ petition for a change in the wage formula.
      • The order noted that PAL had used the 365-day divisor consistently since 1952, and the union’s proposal was only a suggestion without a legal demand at that time.
      • Emphasis was placed on the long-standing practice and the fact that no prior objection was raised until much later.
    • May 30, 1964 – The unions moved for reconsideration of the CIR order.
    • June 9, 1964 – The unions filed a memorandum contending:
      • The order was contrary to law and evidence.
      • The use of 365 as a divisor improperly included off-days which, under existing collective bargaining agreements, were not paid workdays.
      • The prescription issue: that claims based on written contracts (the collective bargaining agreements) prescribe in ten years per Article 1144 of the Civil Code.
    • June 26, 1964 – PAL answered each point raised by the unions.
    • October 9, 1969 – The CIR reversed its earlier decision:
      • The industrial court sustained the unions’ preferred method of computation.
      • However, it ordered that the computation of pay differentials be effective only from July 1, 1957.
    • Subsequent Appeals
      • PAL filed its appeal petition on December 13, 1969.
      • PALEA filed its petition for review on certiorari on January 3, 1970.
  • Additional Context
    • PAL’s arguments
      • As a public utility operating continuously, PAL asserted that its method of computation was correct, citing that operations and employment practices had long included payment for off-days (e.g., Saturdays, Sundays, legal holidays).
      • Emphasis was laid on a previous decision in Automotive Parts & Equipment Co., Inc. vs. Lingad holding that off-days are paid days.
    • Unions’ arguments
      • The unions contended that using a divisor of 365 unjustly lowers the computed wage rate since it counts non-working off-days.
      • They argued that the correct divisor should be the number of actual working days, not calendar days.
      • They also raised the issue that under the collective bargaining agreements, the applicable prescriptive period should be ten years.
    • Estoppel and Laches Issue
      • PAL argued that the unions’ long-standing acquiescence to the wage formula amounted to estoppel and that laches should bar the unions from now claiming a different computation method.
      • The jurisprudence clarifies that mere innocent silence does not automatically invoke estoppel, especially without evidence of negligence or misleading conduct.

Issues:

  • Correctness of the Wage Computation Formula
    • Whether the method of computing the basic daily and hourly rate by multiplying the monthly salary by 12 and dividing by 365 (and then by 8) is legally proper.
    • Whether the alternative method based on actual working days should be applied instead.
  • Application of Estoppel and Laches
    • Whether the prolonged period of the unions’ silence and acquiescence to PAL’s wage computation method estops them from challenging the formula now.
    • Whether laches should bar the unions’ claim for pay differentials.
  • Prescription of the Action
    • Determination of the effective date for the payment of accrued salary differentials.
    • Whether the claim, being based on collective bargaining agreements (written contracts), is subject to the ten-year prescriptive period under Article 1144 of the Civil Code or the three-year period provided under the Eight-Hour Labor Law (CA No. 444, as amended).
  • Scope of Collective Bargaining Agreements
    • The proper interpretation of the contractual terms agreed upon in multiple collective bargaining agreements between PAL and the unions.
    • Whether PAL’s unilateral adoption of its wage formula violates these agreements.

Ruling:

  • (Subscriber-Only)

Ratio:

  • (Subscriber-Only)

Doctrine:

  • (Subscriber-Only)

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