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

C William Pancake JR

Named as the FAA publishes it on its approvals.

Holds 4 approved modifications, most of them for the American Champion Aircraft 7 Citabria and Champ. FAA spelling: C William Pancake Jr.

Approved modifications 4 · newest first

2020-02-24SA04301CH · Attachment of fabric covering and wing leading edge · 11AC, 11BC, 11CC
2020-02-24SA04205CH · Installation of Engines and propellers · 7AC, 7BCM (Army L-16A), 7CCM (Army L-16B)
2017-12-07SA04202AT · Replacement of either a 65 horsepower Continental A65-8 or A65-8F engine with a 85 horsepower Continental C85-12F or... · 11AC, 11BC, S11AC
2017-04-06ST09176CH-A · Installation of Engines and propellers per C. William Pancake Engine and Propeller Eligibility · 7AC, 7BCM (Army L-16A), 7CCM (Army L-16B)

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.