Narrative:

During FAA inspection subsequent to an accident the ELT battery was found to be out-of-date. It had been installed mar/4/92, and was marked to be replaced on or before 'dec 93.' I failed to track this expiration date. I am setting up a database to help keep track of such information -- i.e., night currency, 90 day landing currency, propeller overhaul airworthiness directive date, transponder static date, etc. I had performed a 3 sweep test of the ELT about 1.5 hours prior to flight on apr/94 and did not note the expiration date! I have learned, and will be more attentive to such items as this battery expiration. Date check will now be added to the preflight checklist.

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Original NASA ASRS Text

Title: PVT PLT FAILS TO NOTE THE EXPIRATION DATE OF HIS ACFT'S ELT BATTERY AND FLIES ACFT WITH ILLEGAL BATTERY.

Narrative: DURING FAA INSPECTION SUBSEQUENT TO AN ACCIDENT THE ELT BATTERY WAS FOUND TO BE OUT-OF-DATE. IT HAD BEEN INSTALLED MAR/4/92, AND WAS MARKED TO BE REPLACED ON OR BEFORE 'DEC 93.' I FAILED TO TRACK THIS EXPIRATION DATE. I AM SETTING UP A DATABASE TO HELP KEEP TRACK OF SUCH INFO -- I.E., NIGHT CURRENCY, 90 DAY LNDG CURRENCY, PROP OVERHAUL AIRWORTHINESS DIRECTIVE DATE, XPONDER STATIC DATE, ETC. I HAD PERFORMED A 3 SWEEP TEST OF THE ELT ABOUT 1.5 HRS PRIOR TO FLT ON APR/94 AND DID NOT NOTE THE EXPIRATION DATE! I HAVE LEARNED, AND WILL BE MORE ATTENTIVE TO SUCH ITEMS AS THIS BATTERY EXPIRATION. DATE CHK WILL NOW BE ADDED TO THE PREFLT CHKLIST.

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.