SR02104SE
Installation of a Supplemental Lighting System; manufactured and installed in accordance with Aviation Specialties Unlimited (ASU) Master Drawing List MDL-139004-3, Rev. A, dated February 1, 2011, or later FAA-approved revisions and maintained in a accordance with ASU Instructions for Continued Airworthiness ICA-139004-4, Rev IR, dated July 7, 2010, or later FAA-accepted revisions. Held by Aviation Specialties Unlimited INC., which holds 90 approved modifications in all. Last revised May 16, 2018. System: electrical power.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Agusta S.p.A.; Agusta S.p.A.
- Models
- AB139, AW139
- Type certificates
- R00002RD, R00002RD
- On this site
- Agusta Spa AB139 7 registered
Agusta Spa AW139 14 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.