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

Whelen Engineering CO INC

Holds 9 approved modifications, most of them for the Cessna 172 Skyhawk. FAA spelling: Whelen Engineering Co Inc.

Approved modifications 9 · newest first

Cessna 172 Skyhawk 3Piper PA-17 Vagabond 3Piper PA-32 Cherokee Six, Lance and Saratoga 3Aero Commander 680 2Beechcraft 35 Bonanza and Debonair 2Beechcraft 65 2Beechcraft 95 Travel Air and Baron 55 2Beechcraft A23 2Beechcraft A36 Bonanza 2Beechcraft A65 2Beechcraft B36 Bonanza 2Bellanca 17 Viking 2
2016-08-11SA00344BO Page 2 · Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. · AT-401B, AT-402A, AT-402B
2016-08-11SA00344BO Page 1 · Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. · F.260, F.260B, F.260C
2010-07-06SA800EA (PAGE 2) · Installation of Aviation White Anti-Collision Strobe Lights. Whelen Models A429, A430, A434, A450, A408 (white),... · G-164, G-164A, G-164B
2010-07-06SA800EA (PAGE 1) · Installation of Aviation White Anti-Collision Strobe Lights. Whelen Models A429, A430, A434, A450, A408 (white),... · 14-19-3A, 17-30, 17-30A
2008-03-31ST22BO · Replacement of Grimes power supply P/N 60-2799-1 and position light P/N's 30-1085-15/-16 with Whelen power supply... · 550, S550, 560
1999-04-28ST00101BO · Replacement of Grimes power supply P/N 60-2799-1 and position lights P/Ns 30-1085-19/20 with Whelen power supply P/N... · 560
1978-03-01SA21NE · Installation of Whelen A600-PR and A600-PG anti-collision strobe with forward and tail position light assemblies as... · PA-32R-300
1974-03-21SA6NE · Installation of Whelen anti- collision strobe light power supplies, Models HS-41 and HD-42 as direct replacements... · 172M
1960-01-01SA738EA · Installation of Whelen Engineering Co., Inc. Model HD-14 anti-collision strobe light system. · M20F, M20C, M20E

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.