Shadik International delivers specialized inspection, scheduled airworthiness testing, and technical maintenance support for all types of Flight Data Recorders (FDR) and Cockpit Voice Recorders (CVR).

Aviation regulations mandate that flight recorders be periodically inspected and tested to verify that all mandatory flight parameters and audio channels are recording accurately and without distortion. Our certified diagnostic procedures guarantee that your recorders are 100% compliant with DGCA, FAA, and ICAO airworthiness directives.

Service Scope & Maintenance Capabilities

• Physical & Structural Integrity: Thorough inspection of crash-survivable enclosures, fire-block thermal insulation, and anti-corrosion exterior coatings.
• Underwater Locator Beacon (ULB) Testing: Acoustic frequency testing (37.5 kHz / 8.8 kHz), acoustic output level measurement, and battery expiry verification.
• Connector & Wiring Harness Checkout: Pin-by-pin insulation resistance tests, ground bonding verification, and data bus interface diagnostics.
• Calibration & Sensor Verification: Validating that sensor scaling equations in aircraft documentation correspond faithfully to recorded telemetry values.
• MRO Partnership Support: Providing seamless readout reports, calibration certs, and technical paperwork during scheduled C-Checks and heavy maintenance visits.

Regulatory Inspection Intervals

Inspection Type	Standard Interval & Mandatory Action
Annual FDR Readout	Mandatory 12-month interval per DGCA CAR & ICAO Annex 6; verifies all parameters
Annual CVR Readout	12-month acoustic fidelity test and 4-channel microphone check
ULB Battery & Beacon	Battery life tracking (typically 6-year cycle) and acoustic ping activation test
Post-Incident Readout	Immediate quarantine and extraction under chain of custody