SR00031LB
Installation of analog/digital turbine outlet temperature exceedance logging capability. (206B with Allison 250-C20B or 250-C20J engines only) (206L with Allison 250-C20B or 250-C20J engines only) (206L-1 with Allison 250-C28 engines only) (206L-3 wit h Allison 250-C30 engines only) (206L-4 with Allison 250-C30 engines only). Held by Diamond J, INC, which holds 4 approved modifications in all. Last revised May 17, 1999. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bell Helicopter Textron (Canada); Bell Helicopter Textron (Canada); Bell Helicopter Textron (Canada); Bell Helicopter Textron (Canada); Bell Helicopter Textron (Canada); MD Helicopter Inc.; MD Helicopter Inc.
- Models
- 206B, 206L, 206L-1, 206L-3, 206L-4, 369D, 369E
- Type certificates
- H2SW, H2SW, H2SW, H2SW, H2SW, H3WE, H3WE
- On this site
- Bell 206 JetRanger and LongRanger 1,455 registered
Md Helicopters Inc 369 108 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 20, 2026.