Narrative:

Cargo smoke light illuminated during cruise. So checked cargo area best he could due to the large containers in back. Found absolutely no indication of fire or smoke. Did not comply with emergency checklist. Continued to destination without further incident. Found no evidence of fire or smoke after landing during check of cargo. Checklist says to depressurize aircraft and land as soon as possible. Did not comply with checklist because of 2 reasons: 1) no evidence of smoke or fire (by sight or smell). 2) crossing over a line of thunderstorms.

Google
 

Original NASA ASRS Text

Title: AN AIR FREIGHTER CREW IGNORED A FIRE WARNING IN THE MAIN CARGO COMPARTMENT.

Narrative: CARGO SMOKE LIGHT ILLUMINATED DURING CRUISE. SO CHKED CARGO AREA BEST HE COULD DUE TO THE LARGE CONTAINERS IN BACK. FOUND ABSOLUTELY NO INDICATION OF FIRE OR SMOKE. DID NOT COMPLY WITH EMER CHKLIST. CONTINUED TO DEST WITHOUT FURTHER INCIDENT. FOUND NO EVIDENCE OF FIRE OR SMOKE AFTER LNDG DURING CHK OF CARGO. CHKLIST SAYS TO DEPRESSURIZE ACFT AND LAND AS SOON AS POSSIBLE. DID NOT COMPLY WITH CHKLIST BECAUSE OF 2 REASONS: 1) NO EVIDENCE OF SMOKE OR FIRE (BY SIGHT OR SMELL). 2) XING OVER A LINE OF TSTMS.

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.