BATTERY PACK (P/N 77977) - As Removed

Part 77977 is an aircraft battery pack that provides DC electrical power to essential systems when engines are off or during emergency conditions. This backup power source supports avionics, instrumentation, and critical flight deck equipment on the essential DC bus. The battery pack meets RTCA DO-160 environmental qualification standards; lithium variants comply with RTCA DO-311 and FAA AC 20-184.

Installation requires verification against the aircraft's Illustrated Parts Catalog and adherence to the applicable Aircraft Maintenance Manual procedures to ensure proper electrical compatibility and safety.

What is the BATTERY PACK (P/N 77977)?

Part 77977 is an aircraft battery pack that provides DC electrical power to essential systems when engines are off or during emergency conditions. This backup power source supports avionics, instrumentation, and critical flight deck equipment on the essential DC bus.

Is the 77977 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The BATTERY PACK is available in: As Removed. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the 77977 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the 77977?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.