What is the recommended action if you observe inconsistent air data readings?

• A. Continue flight as normal.
• B. Cross-check with standby instruments, apply emergency procedures, and establish safe flight.
• C. Rely on autopilot to correct readings.
• D. Monitor engine parameters only.

Answer: (B)

When air data readings are inconsistent, it signals a possible pitot-static system fault and the priority is to rely on independent sources and keep the airplane safe. Use the standby instruments to verify airspeed, altitude, and vertical speed, since they operate on a different data path. Cross-check the primary readings against the standby indications to determine which data you can trust. Follow the emergency procedures for instrument/pitot-static failure—switch to an alternate air data source, perform the checklist, and set up the airplane for safe flight. Establish a stable, controlled flight by maintaining an appropriate airspeed and attitude, reducing workload, and planning for a possible diversion if needed. Relying on autopilot to fix the readings or continuing as normal would not address the unreliable data, and focusing only on engine parameters does not resolve the air data issue.