Data block containing (mismatch) MISM requires

Data block containing (mismatch) MISM requires

• A. Supervisory notification
• B. Immediate action
• C. No action
• D. Pilot confirmation

Answer: (A)

A data block mismatch flagged as MISM means the data in that block does not match what the system expects, signaling a data integrity issue in the stream. Because the problem is with the data itself rather than a direct, immediate instruction to pilots or controllers, the proper response is to call for supervisory notification. A supervisor can verify the cause—such as transmission errors, timing discrepancies, or a source mismatch—and determine the safest course, whether that’s retransmitting, switching data sources, or pausing the data feed until the issue is resolved. Taking immediate action locally or demanding pilot confirmation wouldn’t fix the underlying data problem and could introduce unsafe or unnecessary actions. No action would leave the mismatch unaddressed, which is unsafe.

A data block mismatch flagged as MISM means the data in that block does not match what the system expects, signaling a data integrity issue in the stream. Because the problem is with the data itself rather than a direct, immediate instruction to pilots or controllers, the proper response is to call for supervisory notification. A supervisor can verify the cause—such as transmission errors, timing discrepancies, or a source mismatch—and determine the safest course, whether that’s retransmitting, switching data sources, or pausing the data feed until the issue is resolved. Taking immediate action locally or demanding pilot confirmation wouldn’t fix the underlying data problem and could introduce unsafe or unnecessary actions. No action would leave the mismatch unaddressed, which is unsafe.