Règle correspondante
Practice Relating to Rule 48. Attacks against Persons Parachuting from an Aircraft in Distress
Indonesia’s Military Manual (1982) states:
Persons who are parachuting in distress should not be attacked. Unless he/she enters into combat, once he/she has landed, he/she should be given the opportunity to surrender. However, during combat, parachuting troops are lawful targets, though they are still in the process of parachuting. 
Indonesia, The Basics of International Humanitarian Law, Legal Division of the Indonesian Armed Forces, 1982, § 106.