Supplemental type certificate · Trans World Airlines Inc
- Holder
- Trans World Airlines Inc · United States
- Status
- Current · Amended
- Status date
- July 1, 1973
- Product
- Aircraft · Large Multi-Engine
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 6, 2025.
What it approves
Modify the A.C. essential bus power source circuitry to provide automatic transfer. (707-124) (707-331)
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 |
|---|
| The Boeing Company | 707 | 4A21 |
| The Boeing Company | 707 | 4A26 |