SR02510SE
Installation of a Supplemental Lighting System. Held by Aviation Specialties Unlimited INC., which holds 90 approved modifications in all. Last revised August 3, 2026. System: electrical power.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Billings Flying Service Inc; Tandem Rotor LLC; Columbia Helicopters Inc.
- Models
- CH-47D, CH-47D, CH-47D
- Type certificates
- R0011DE, R0014DE, R00051SE
- On this site
- Billings Flying Service Inc CH-47 6 registered
Tandem Rotor Llc CH47 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 8, 2026.