SH4746NM
Use of Mobil Oil Corp. 'Mobilgrease 28' synthetic grease to lubricate the main rotor head, swash plate and various associated linkages. Held by Erickson Air Crane INC. DBA Erickson Air-Crane, which holds 38 approved modifications in all. Last revised March 1, 2001. System: rotorcraft systems.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Erickson Air-Crane Company
- Models
- S-64E
- Type certificate
- H6EA
- On this site
- Erickson S-64 5 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 7, 2026.