Narrative:

During preflight of our aircraft for flight, an FAA asi was riding our jump seat discovered an expired temporary certificate of aircraft registration which he brought to my attention. We got our maintenance control, line maintenance, and dispatch involved to research and solve this occurrence. Further investigation showed that the permanent aircraft certificate of registration was in fact in a holder on the aircraft but the airworthiness certificate was actually missing. So this aircraft had been operating without the standard airworthiness certificate onboard. What I think may have happened was that when the permanent aircraft certificate of registration was placed on the aircraft to replace the temporary aircraft certificate of registration, that possibly the standard airworthiness certificate was removed by mistake instead leaving the expired temporary aircraft registration and the newly installed permanent aircraft registration.

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Original NASA ASRS Text

Title: FAA INSPECTOR ON ENRTE SURVEILLANCE INSPECTION NOTED, DURING PREFLT, THAT THE ACFT TEMPORARY REGISTRATION CERTIFICATE WAS EXPIRED AND THE AIRWORTHINESS CERTIFICATE MISSING.

Narrative: DURING PREFLT OF OUR ACFT FOR FLT, AN FAA ASI WAS RIDING OUR JUMP SEAT DISCOVERED AN EXPIRED TEMPORARY CERTIFICATE OF ACFT REGISTRATION WHICH HE BROUGHT TO MY ATTN. WE GOT OUR MAINT CTL, LINE MAINT, AND DISPATCH INVOLVED TO RESEARCH AND SOLVE THIS OCCURRENCE. FURTHER INVESTIGATION SHOWED THAT THE PERMANENT ACFT CERTIFICATE OF REGISTRATION WAS IN FACT IN A HOLDER ON THE ACFT BUT THE AIRWORTHINESS CERTIFICATE WAS ACTUALLY MISSING. SO THIS ACFT HAD BEEN OPERATING WITHOUT THE STANDARD AIRWORTHINESS CERTIFICATE ONBOARD. WHAT I THINK MAY HAVE HAPPENED WAS THAT WHEN THE PERMANENT ACFT CERTIFICATE OF REGISTRATION WAS PLACED ON THE ACFT TO REPLACE THE TEMPORARY ACFT CERTIFICATE OF REGISTRATION, THAT POSSIBLY THE STANDARD AIRWORTHINESS CERTIFICATE WAS REMOVED BY MISTAKE INSTEAD LEAVING THE EXPIRED TEMPORARY ACFT REGISTRATION AND THE NEWLY INSTALLED PERMANENT ACFT REGISTRATION.

Data retrieved from NASA's ASRS site as of July 2007 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.