The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · reissued

SA01491CH

Installation of Baumann model BF27504A floats. Held by Baumann Floats LLC, which holds 12 approved modifications in all. Last revised May 25, 2022. System: airframe structure.

What it applies to

Kind of product
Aircraft
Design holder
Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.; Maule Aerospace Technology Inc.
Models
M-5-235C, M-6-235, M-7-235, M-7-235A, M-7-235B, M-7-235C, M-7-260, MT-7-235, MT-7-260, MX-7-235, M-7-260C, M-7-420AC, M-7-420A, MT-7-420, MX-7-420
Type certificates
3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23, 3A23
On this site
Maule M-5 364 registered
Maule M-6 81 registered
Maule M-7 275 registered
Maule MT-7 76 registered
Maule MX-7 192 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 13, 2026.