SE1617GL
Installation of Ametek 8TJ124GGR1 digital mass fuel flow transmitter. Held by Abx Air Incorporated, which holds 64 approved modifications in all. Last revised April 9, 2013. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Pratt & Whitney Division; Pratt & Whitney Division
- Models
- JT3D-7, JT3D-3B
- Type certificates
- 1E8, 1E8
- 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.