B737 flight crew operated an aircraft with an out of date FMC database.

Attributes
ACN	506330
Time
Date	200103
Day	Thu
Place
Locale Reference	airport : las.airport
State Reference	NY
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 6000
ASRS Report	506330
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Flight Crew Human Performance Chart Or Publication
Primary Problem	Flight Crew Human Performance

Narrative:

We were notified that we flew with the FMC data out of date. On the first flight it (the FMC) alerted us with the 'navigation data out of date' message. I selected the next update and activated it, believing it was now current. Apparently, it was the previous update and also out of date. I could have sworn the dates made sense while I updated, but I can't be positive since I've done it so many times before and there was nothing out of the ordinary that makes this instance stand out from all the others. All flts were flown without incident.

Original NASA ASRS Text

Title: B737 FLT CREW OPERATED AN ACFT WITH AN OUT OF DATE FMC DATABASE.

Narrative: WE WERE NOTIFIED THAT WE FLEW WITH THE FMC DATA OUT OF DATE. ON THE FIRST FLT IT (THE FMC) ALERTED US WITH THE 'NAV DATA OUT OF DATE' MESSAGE. I SELECTED THE NEXT UPDATE AND ACTIVATED IT, BELIEVING IT WAS NOW CURRENT. APPARENTLY, IT WAS THE PREVIOUS UPDATE AND ALSO OUT OF DATE. I COULD HAVE SWORN THE DATES MADE SENSE WHILE I UPDATED, BUT I CAN'T BE POSITIVE SINCE I'VE DONE IT SO MANY TIMES BEFORE AND THERE WAS NOTHING OUT OF THE ORDINARY THAT MAKES THIS INSTANCE STAND OUT FROM ALL THE OTHERS. ALL FLTS WERE FLOWN WITHOUT INCIDENT.

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.