Holding altitude on a
legacy fleet.

A reliable airline with an unreliable cockpit.

Coastal Regional flies twenty-four narrow-body aircraft between twelve secondary East Coast cities. The fleet, acquired over fourteen years from three predecessor operators, runs on three different avionics suites — each with its own MRO contract, its own pilot training overhead, and its own list of deferred mods.

The numbers told the story. In 2023, Coastal logged 184 dispatch reliability incidents — roughly one every two days. Sixty percent traced to avionics: a flight-management computer fault, a transponder timeout, a display unit that wouldn't come back from a cold soak. The carrier had a maintenance-savvy team and a clean reputation. It also had a problem that maintenance alone could not fix.

Replace the fleet was not on the table.

A clean-sheet fleet renewal would have solved the problem and taken Coastal off the schedule for four years. Leasing markets were tight; the right used aircraft were not available in the quantities required; and the carrier's creditors had financed the current fleet on a ten-year amortization with three years to run.

The constraint was therefore explicit: hold the fleet, modernize the cockpit, do it without grounding more than one aircraft per base per quarter, and finish before the 2026 ADS-B compliance deadline.

We were not buying airplanes. We were buying back the calendar.

One avionics core. Three install kits.

Meridian standardized on a single STC-eligible avionics core and engineered three install kits — one per legacy suite — so every aircraft would land in the same cockpit configuration regardless of where it started. The pilot training curriculum collapsed from three type-rating differences modules to one. The MRO contract collapsed from three to one.

Eighteen months. Twenty-four tails. Zero AOG-from-program.

The install schedule began in March 2024 and completed in September 2025. No aircraft missed its scheduled return to service. Two install windows were extended by a week — one for a wiring loom revision discovered on the second airframe and carried back to the first; one for an FAA inspector who could not travel.

The single biggest operational shift was not the hardware. It was the install kits. Once the second airframe of each type shipped, the install crews could prep the kit before the aircraft arrived at the bay — turning a five-day downtime into three.

14% reduction in dispatch reliability incidents.

In the twelve months following program completion, Coastal logged 158 dispatch reliability incidents — a 14% reduction year over year, against a fleet that flew 11% more hours. Avionics-attributable incidents fell from 60% of total to 41%.

The avoided-cost figure attached to those incidents — schedule disruption, accommodation, crew positioning — came to $4.2M across the first post-program year alone.

“We had a maintenance organization that was already very good. What we did not have was a cockpit that gave them a fair fight. Meridian gave us a fair fight, and the numbers followed.”

Meridian Aerospace integrates avionics, flight-test operations, and sustainment engineering for regional carriers and Part 25 operators. Founded in 2007. Based in Wichita, KS. FAA repair-station certificate KM5R441K.

We bid programs we can finish on the calendar we quote. If we cannot, we say so.