P-507M Solid-State Voice Recorder (CVR)

P-507M Solid-State Voice Recorder (CVR)

The P-507M is a solid-state aircraft voice recorder (CVR) designed to replace legacy tape or wire systems such as P-507-ZBS, P-503B, P-503M1 and MS-61, which no longer meet modern ICAO recording standards. It provides reliable digital recording of cockpit audio and system time code data. Technical features of the P-507M: – 3 voice recording channels for pilot and cockpit communications. – 1 channel for recording from an omnidirectional microphone. – 1 channel for recording coded time information. – Speech frequency range: 300–3400 Hz. – Continuous loop recording saving the last 8 hours of cockpit audio, with total memory retention up to 24 hours. – DC power supply from onboard network (24–29.4 V), operational down to 18 V without losing recorded data. – Low power consumption: ~15 W during operation. – Maximum weight approximately 10.5 kg. The P-507M is widely used in rotorcraft and fixed-wing aircraft where digital cockpit voice recording is mandated for safety and accident investigation purposes. Solid-state memory enhances crash survivability and data retention compared to older analog systems, aligning with ICAO and many civil aviation regulators’ requirements for longer recording durations. Applications & Benefits: – Upgrade and retrofit replacement for legacy voice recorders. – Supports accident investigation and voice capture per ICAO safety recommendations. – Digital recording with extended loop capacity for up to 24 h. – Compatible with 27 V DC power networks common in helicopters and business aircraft. – Lower maintenance and increased reliability due to solid-state design. Offered for commercial supply, MRO programs, and retrofit modernization projects. Documentation, conformity certification and delivery logistics support available upon request.