Narrative:

Enroute; the first officer's FD failed and the 'no land three' message appeared. A little later the captain's FD failed. In the vicinity of the top of descent the first officer's ADI and HSI failed with the 'sg' failure message on both screens. We declared an emergency because of multiple failures and the captain became the pilot flying. We landed without incident.

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Original NASA ASRS Text

Title: A B757-200 flight crew near top of descent reported loss of Captain's and First Officer's FD; and later the First Officer's ADI and HSI. They declared an emergency and landed without incident.

Narrative: Enroute; the First Officer's FD failed and the 'no land three' message appeared. A little later the Captain's FD failed. In the vicinity of the top of descent the First Officer's ADI and HSI failed with the 'SG' failure message on both screens. We declared an emergency because of multiple failures and the Captain became the pilot flying. We landed without incident.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.