Narrative:

On a non-er aircraft flying A-300 between sju and phl. There is a point equal distant between sju and bda of 440 NM or about 56 mins divert time to either bda or sju. Without an er aircraft your expected battery life with complete electrical failure is estimated to be 30 mins. That would put you in an electrically dead aircraft for at least 25 mins flying. Is this a good idea? If the WX was not clear at bda or sju, I am sure you could successfully land. Food for thought.

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Original NASA ASRS Text

Title: AN ACR PLT CONCERNED ABOUT BEING ABOUT 1 HR FROM ANY PLACE TO LAND WITH THE POTENTIAL OF A COMPLETE ELECTRIC FAILURE ON A DOMESTIC VERSION OF THE B757 THAT HAS A BATTERY WITH A NOMINAL USEFUL LIFE OF 30 MINS.

Narrative: ON A NON-ER ACFT FLYING A-300 BTWN SJU AND PHL. THERE IS A POINT EQUAL DISTANT BTWN SJU AND BDA OF 440 NM OR ABOUT 56 MINS DIVERT TIME TO EITHER BDA OR SJU. WITHOUT AN ER ACFT YOUR EXPECTED BATTERY LIFE WITH COMPLETE ELECTRICAL FAILURE IS ESTIMATED TO BE 30 MINS. THAT WOULD PUT YOU IN AN ELECTRICALLY DEAD ACFT FOR AT LEAST 25 MINS FLYING. IS THIS A GOOD IDEA? IF THE WX WAS NOT CLR AT BDA OR SJU, I AM SURE YOU COULD SUCCESSFULLY LAND. FOOD FOR THOUGHT.

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.