Narrative:

Prior to starting the engine, I operationally checked the fire wall valves (fuel). The right-hand side failed the first test, but operationally checked normal the second time. Continued flight operations normally. Final destination was clovis, NM. Next morning again cycled right-hand valve twice before normal operation. Departed normally until 500-700' where the left-hand fire warning light illuminated. With no visible sign of fire, did not shut down left-hand engine and landed uneventfully. Called for a mechanic and waited for 2 hours. Upon long checklist start, found right-hand fire wall valve had failed. Reported to company maintenance and cancelled all flts that day until new aircraft arrived next morning. First officer employment was terminated that week and reported to FAA that fire wall valve was inoperative 2-3 days prior.

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Original NASA ASRS Text

Title: COMMUTER SMT OPERATED WITH A QUESTIONABLE FIRE WALL FUEL SHUT OFF VALVE.

Narrative: PRIOR TO STARTING THE ENG, I OPERATIONALLY CHKED THE FIRE WALL VALVES (FUEL). THE RIGHT-HAND SIDE FAILED THE FIRST TEST, BUT OPERATIONALLY CHKED NORMAL THE SECOND TIME. CONTINUED FLT OPS NORMALLY. FINAL DEST WAS CLOVIS, NM. NEXT MORNING AGAIN CYCLED RIGHT-HAND VALVE TWICE BEFORE NORMAL OPERATION. DEPARTED NORMALLY UNTIL 500-700' WHERE THE LEFT-HAND FIRE WARNING LIGHT ILLUMINATED. WITH NO VISIBLE SIGN OF FIRE, DID NOT SHUT DOWN LEFT-HAND ENG AND LANDED UNEVENTFULLY. CALLED FOR A MECH AND WAITED FOR 2 HRS. UPON LONG CHKLIST START, FOUND RIGHT-HAND FIRE WALL VALVE HAD FAILED. RPTED TO COMPANY MAINT AND CANCELLED ALL FLTS THAT DAY UNTIL NEW ACFT ARRIVED NEXT MORNING. F/O EMPLOYMENT WAS TERMINATED THAT WK AND RPTED TO FAA THAT FIRE WALL VALVE WAS INOP 2-3 DAYS PRIOR.

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.