What it approves
Installation and usage of Aeroshell15W50 oil.
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
Supplemental type certificate · Shell Development Co
- Holder
- Shell Development Co · United States
- Status
- Current · Issued
- Status date
- October 22, 1992
- Product
- Engine
- Certification basis
- Part 21
From FAA DRS. DRS record last changed December 5, 2025.