280. Deviation.

A voluntary1 departure from the direct route or an unreasonable delay, at any rate if wilful2, constitutes a deviation. Unless it can be justified on one of the grounds subsequently stated3, a deviation precludes the shipowner from relying on any exception or other term4 in his favour contained in the charterparty and renders him liable for any loss of or damage to the cargo, unless he can show that this loss or damage must have occurred even if there had been no deviation5.

It seems immaterial whether the loss or damage occurs during the deviation or after it has ceased