Kernrechtsfrage
Whether the explosion loss fell under the contractual exclusion for non-accidental damage or internal defect under CGA C 4.1 and Art. 33 LCA.
Extrahierter Entscheid
The explosion was an accident and did not fall within the exclusion clause; the insurer could not deny coverage on that basis.
Extrahierte Begründung
The event was sudden, involuntary, external, and extraordinary. The clause had to be interpreted restrictively; the examples of internal defect did not cover a nighttime entry, use of a lighter, and resulting explosion caused by an unknown gas leak.