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

SA397NW

Remove transport battery and battery box and install Gill 12-GCAB-9 or equal battery and battery box relocated to firewall per II K-8784. Held by Kenmore Air Harbor INC, which holds 34 approved modifications in all. Last revised April 5, 2019. System: electrical power.

What it applies to

Kind of product
Aircraft
Design holder
de Havilland Inc. (Canada)
Models
DHC-2 Series
Type certificate
A-806
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 5, 2026.