About Parnassus
Success Depends on Teamwork
Team — a cohesive group of individuals with complementary skills and shared responsibility who collaborate toward common goals. A team aligns purpose, roles, and processes; communicates transparently; distributes tasks according to capability; and holds members accountable for performance and outcomes. Effective teams combine trust, mutual support, and adaptive coordination to make decisions, solve problems, and deliver results that singular contributors cannot achieve as efficiently or reliably.
Make Parnassus part of your Team.
Principal, Alana Depew-Branigan
Alana lives in Tucson, Arizona, with her husband Michael and their two pets, surrounded by the sweeping vistas of the Catalina mountains and a golf course in the beautiful Sonoran desert. Since 1979, Alana has been working in RMS Engineering, bringing decades of experience and a passion for safer, more reliable flight to every project she undertakes, including:
KC-390 Throttle Quadrant Assembly, Rudder Pedal Assy, Flap-Slat Lever, Speed brake, Autobrake, Landing Gear Control Lever and Steering Tiller
S-97 Active Collective Controller
E2 Column & Wheel and Rudder Pedals System, Throttle Control Quadrant
KONGSBERG Handheld Weapons Controller
B-52 Cursor Control Device
A350 Cabin Pressure Control System (CPCS)
Bell SPeed and Runway Independent Technologies (SPRINT) UAV
Honeywell Thunderbolt Next Generation Avionics (NGA) DistributedProcessing Module (DPM), General Aviation I/O module and the Pilot Information & Display Unit (PIDU)
UTC/Goodrich IRKUT MC-21 Slat/Flap Actuation System (SFAS) High Lift Electronics Module (HLEM)
With a strong history of collaborating with customers and peer groups to deliver complex analysis report, Alana has established herself as an exceptional team leader and a recognized expert in the RMS field. She combines deep technical knowledge with clear communication and strategic vision, driving solutions that enhance safety, reliability, and operational performance. Colleagues rely on her to synthesize diverse perspectives, manage stakeholders, and guide cross-functional teams to on-time, on-budget outcomes that meet rigorous industry standards.
Our Team
Parnassus LLC is built around experienced aerospace engineers who are passionate about solving complex technical problems. Our team brings decades of practical experience supporting commercial aviation, military aircraft, advanced aerospace concepts, and space-related programs. We combine rigorous engineering analysis with responsive customer support to help clients identify technical risks early, make informed engineering decisions, and successfully navigate demanding development and certification programs.
Whether supporting a single analysis or an integrated system safety effort, our objective remains the same: deliver technically sound, practical solutions that contribute to safer, more reliable aerospace systems.
The image shows the ruins of the Temple of Apollo at the Delphi Archaeological Site in Greece located on the slopes of Mount Parnassus. Known in ancient times as the "navel of the earth," this UNESCO World Heritage site was the legendary home of the Oracle (Pythia).
Our Name
Mount Parnassus is a limestone mountain massif in central Greece, rising to approximately 8,061 feet (2,457 meters) at its highest peak, Liakoura. It towers above the ancient sanctuary of Delphi and has been revered for over 3,000 years.
In Greek mythology, Mount Parnassus became associated with:
Apollo, god of prophecy, music, poetry, healing, and knowledge.
The Muses, the nine goddesses of inspiration in literature, science, and the arts.
Intellectual achievement and wisdom.
The pursuit of excellence in both technical and artistic endeavors.
We chose “Parnassus” with intention and pride — a symbol that captures our commitment to elevating aviation safety, reliability, and innovation.
Parnassus evokes the classical peak where inspiration and excellence converge. For us, it represents:
A summit of expertise: assembling the brightest minds in engineering, operations, and data science to solve complex aviation challenges.
A vantage point of clarity: using rigorous analysis and advanced modeling to see risks earlier and more accurately.
A dedication to continuous ascent: iterating faster, learning from every program, and raising industry standards.
As Parnassus, we honor a legacy of creativity and high standards while translating those ideals into practical results: safer flight operations, more reliable systems, and measurable reductions in risk. Our name is both an aspiration and a promise — to reach higher, think deeper, and deliver solutions that keep people flying with greater confidence.
“Alana reliably delivers high-quality work on time and often goes beyond expectations. She is a great team player, actively helping colleagues and promoting a cooperative, solution-focused atmosphere.”
– Former Coworker