Abstract: A redundant ice management system and method to de-ice and anti-ice an aircraft member (150) is provided. The system comprising a primary ice management sub-system (154) for providing thermal ice management to the aircraft member and a secondary ice management sub-system (172) for providing back-up thermal ice management to the aircraft member (150) in the event of a failure by the primary ice management sub-system (154). The system provides primary and secondary de-ice and anti-ice capabilities to the aircraft member (150) before and during airborne operation.

Abstract: A self-lock and self-retained structural fastener assembly (10) is disclosed. The fastener assembly (10) comprises a plate member (12) having an opening (14) and a pair of receivers (16, 18). A retainer (20) that has a threaded opening (22), a pair of oppositely disposed spring fingers (24, 26) and a pair of oppositely disposed hooks (28, 30) is coupled to the plate member (12) by lockably inserting the hooks (28, 30) within the receivers (16, 18) of the plate member (12) to form a fastener housing (32). A stud (34) is rotatably positioned within the fastener housing (32). The stud (34) has a boss (36) and first and second threaded sections (38, 40) extending in opposite directions from the boss (36). The stud (34) has an uninstalled position wherein the first threaded section (38) is threadably engaged with the threaded opening (22) of the retainer (20).