ST01314AT
Replacement of NiCad batteries with Concorde RG-380 E/40 sealed lead-acid batteries. Held by Mountain Air Cargo, which holds 2 approved modifications in all. Last revised March 24, 1997. System: electrical power.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Fokker Services; Fokker Services
- Models
- F.27 Mark 500, F.27 Mark 600
- Type certificates
- A-817, A-817
- 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 22, 2026.