The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Gibbs Flying Service INC.

Holds 2 approved modifications. FAA spelling: Gibbs Flying Service Inc..

Approved modifications 2 · newest first

1972-09-22SE58WE · SERIAL NUMBERS L1090-33 and L1423-44 ONLY: Installation of a modified induction system. · IGSO-480-A1E6
1970-04-13SE49WE · Modification of the supercharger inlet housing and connecting elbow assembly of Avco Lycoming IGSO-480-A1E6. · Lincoln PT-W

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.