Walter e. Heller and Company
Holds 1 approved modification. FAA spelling: Walter E. Heller and Company.
Approved modifications 1 · newest first
1968-02-21SA1612WE · Installation of Hamilton Standard Hydromatic Full Feathering Propellers 22D30-213/6533A-12, Propeller feather... · Electra 10-A (Army UC-36A; Navy R-20; and XR-20-1)
Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.