The U.S. aircraft register, updated daily
Parts

Nose Float

No failure report names the nose float. 5 FAA approvals let 1 company make a replacement nose float, Air Cruisers holding the most (5).

Approved replacement parts 5 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a nose float and sell it as an approved part for the models named. These are the companies holding such approvals for a nose float:

For these models most: Sikorsky S-76 (4), Sikorsky Aircraft Corp S-76 (1).

MakerPartReplacesFitsGrantedStatus
Air CruisersNose Float Assembly D24677-10576251-01101-107Sikorsky Aircraft Corporation S-76D2014-12-22current
Air CruisersNose Float D24677-10376251-01101-104Sikorsky S-76C2003-04-22current
Air CruisersNose Float D24677-10476251-01101-105Sikorsky S-76C2003-04-22current
Air CruisersNose Float D24677-103Sikorsky SCD 76251-01101Sikorsky S-76A, S-76B1991-03-26current
Air CruisersNose Float D24677-104Sikorsky SCD 76251-01101Sikorsky S-76A, S-76B1991-03-26current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.