SA2825CE
Installation of B&D Instruments & Avionics, Inc. Electronic N2 Gas Compressor Indicator. Data required: (1) B&D Instruments & Avionics, Inc. Installation Manual Part No. 55006-003-011, Revision A, dated April 6, 1992, or later "FAA Approved" revision; and (2) copy of this certificate. Held by Teledyne Controls, which holds 71 approved modifications in all. Last revised November 3, 2011. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company
- Models
- DC-8-71, DC-8-71F, DC-8-72, DC-8-72F, DC-8-73, DC-8-73F
- Type certificates
- 4A25, 4A25, 4A25, 4A25, 4A25, 4A25
- On this site
- Douglas DC-8 6 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 8, 2026.