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An aircraft has had modifications done to it that were known. 3 years have passed since it was last weighed. Does it need to be reweighed?
  • A
    According to EU-OPS, it doesn't have to be reweighed.
  • B
    It has to be reweighed after every modification.
  • C
    It has to be reweighed every 12 months.
  • D
    It has to be reweighed in 6 years time.

EASA AIR OPS
CAT.POL.MAB.100 Mass and balance, loading
(b) The operator shall establish the mass and the CG of any aircraft by actual weighing prior to initial entry into service and thereafter at intervals of four years if individual aircraft masses are used, or nine years if fleet masses are used. The accumulated effects of modifications and repairs on the mass and balance shall be accounted for and properly documented. Aircraft shall be reweighed if the effect of modifications on the mass and balance is not accurately known.

  • Since the modifications are known, there is no need to reweigh the aircraft.

However, note that the aircraft still has to be weighed at intervals of 4 years (for individual masses) or 9 years (if fleet masses are used).

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