Supplemental type certificate · Teledyne Battery Products
- Holder
- Teledyne Battery Products · United States
- Status
- Current · Reissued
- Status date
- April 29, 1996
- Product
- Aircraft · Small Multi-Engine
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 6, 2025.
What it approves
Replace existing nickel-cadmium batteries with Teledyne Gill BB638/T series lead-acid batteries.
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
No AD in this release names this STC Approved models · 2
| Make | Model | Data sheet |
|---|
| Twin Commander Aircraft Corporation | 690 | 2A4 |
| Twin Commander Aircraft Corporation | 690A | 2A4 |