FAA · Supplemental Type Certificate
STC SR09548RC
Installation of dual WAAS (Pilot/Copilot) Flight Management System (FMS) and single FMS configurations in accordance with PHI Master Document List No. PHI-S92-DL-0002, Rev. 8, dated October 10, 2011, or later FAA approved revision. The dual and single FMS configurations are further defined in PHI Top Drawing No. PHI-S92-60662, Rev. A, dated August 29, 2011, or later FAA approved revision. Rotorcraft Flight Manual Supplement Number PHI-959-S92-FMS-001B, Rev. 1, dated September 1, 2011, or later FAA approved revision is required for the dual FMS installation. Rotorcraft Flight Manual Supplement Number PHI-959-S92-FMS-001A, dated August 18, 2009, or later FAA approved revision is required for the single FMS installation. Instructions for Continued Airworthiness PHI Document No. PHI-S92-ICA-0003, Rev. C, dated September 12, 2011, or later FAA accepted revision is required.
What is an STC?
A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.
Applicable aircraft (1)
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
- § 21.47
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗