Electrical Failures In-Flight
Unexpected in-flight electrical failures are among the more unsettling experiences a pilot can face—especially when everything was going according to plan. On Day 28 of the 31-Day Safer Pilot Challenge, what began as a routine recording session quickly transformed into a real-time systems management scenario when an alternator failure occurred. This unscripted moment provided a valuable lesson in systems knowledge, checklist discipline, and calm decision-making under pressure.
Recognizing the Warning Signs of Electrical Failure
The situation began with a CAS (Crew Alerting System) message for “ALT 2.” Although everything else—battery voltage, buses, and electrical output—initially appeared normal, the pilot quickly turned to the abnormal procedures checklist. Recognizing a popped circuit breaker and knowing its implications was the first step toward solving the problem. These initial warning signs are critical for private pilots and instrument-rated aviators to recognize early.
Following the Checklist
Accessing the yellow-tabbed section of the aircraft’s POH, the pilot followed the published guidance. The ALT 2 circuit breaker was reset, only to trip again immediately. Following best practices, the pilot applied a hard rule: never force a circuit breaker. The blog recalls a tragic NTSB report involving a taped breaker and subsequent electrical fire, underscoring the importance of respecting the aircraft’s built-in safety mechanisms.
Redundancy and Risk Mitigation
Although one alternator failed, the aircraft’s redundant systems—ALT 1 in this case—continued to carry the full electrical load. Many Garmin-equipped general aviation airplanes include dual alternators to provide this level of safety. Still, this doesn’t mean complacency is allowed. Pilots should monitor system loads and voltage carefully, especially in high-demand glass cockpit environments. This is an important systems management skill for commercial pilot candidates and flight instructors alike.
Avoiding IMC and Night Conditions
As per the checklist, the pilot confirmed that the flight should avoid IMC and night operations, given the reduced electrical redundancy. Fortunately, conditions were VMC and manageable. This moment reinforces the importance of weather planning, alternate route awareness, and decision-making flexibility—especially when operating under instrument flight rules or in marginal weather.
Practice Real-World Problem Solving
Though the scenario was unscripted, it served as a powerful training tool. By staying calm, working the checklist, and understanding the aircraft’s electrical system, the pilot turned a problem into a learning opportunity. For student pilots, CFIs, and seasoned aviators alike, this serves as a reminder: real-world experience can be the best teacher—when met with professionalism and preparedness.
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