ACFT EQUIP PROB ENG FLAMEOUT AND WOULDN'T RELIGHT. EMER DECLARED AND FLC DIVERTED TO CLOSE ARPT. POSTFLT DISCOVERED MULTIPLE FULL AUTH DIGITAL ENG CTL; FADEC #1 AND #2 FAULTS DETECTED BY 'LEGS' PRINTOUT; BUT NO FAULTS EVER CAME UP ON ECAM UNTIL THE FLAMEOUT. SUSPECTED FUEL SYS PROB; THOUGH NOT SPECIFICALLY IDENTED. ENG WAS SENT BACK TO LESSOR FOR INSPECTION.

Narrative

DURING CRUISE AT FL370 ENRTE TO MSP FROM SFO; THE #2 ENG FLAMED OUT. WE ATTEMPTED A RELIGHT WHICH FAILED. DECLARED AN EMER WITH ATC AND DIVERTED TO SLC ARPT. ALL ECAM AND COMPANY CHKLISTS WERE PERFORMED AND LNDG WAS NORMAL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR CAPT HAD NO SPECIFIC FEEDBACK ON THE CAUSE OF THE FLAMEOUT; BUT THE MECHS DID SAY THAT THERE WERE MINUTE BRASS SHAVINGS IN THE FUEL STRAINERS. COMPLETE FUEL SYS WAS REPLACED; ACFT FERRIED BACK TO THE ACR HOME BASE; THE ENG REMOVED AND SENT BACK TO THE COMPANY THAT LEASED IT OUT. THE POSTFLT PRINTOUT OF THE ACFT MONITORING SYS SHOWED A LONG LIST OF FADEC #1 AND #2 FAULTS WHICH PROBABLY WERE PROBABLY DETECTING A SLIGHT FUEL PROB AND THEN; WHEN IT BECAME MORE PRONOUNCED; BROUGHT ON THE ECAM MESSAGE AS THE ENG FLAMED OUT. RPTR FLC TRIED TO RESTART THE ENG WITH NO LUCK. THE CAPT WAS QUITE CONCERNED THAT; WHEN THE ACFT WAS ON 1 ENG; IF ANOTHER FADEC FAULT OCCURRED ON THE OTHER ENG AND IT SHUT DOWN; THAT THERE WOULD BE NO WAY TO RESTART EITHER OF THE ENGS. HE SAYS; AS FAR AS HE KNOWS; THERE IS NOT INTERCONNECT THAT WOULD BLOCK AN AUTO SHUTDOWN OF A SECOND ENG AFTER THE FIRST HAD FAILED. THOUGH IT PROBABLY IS A VERY EXTREMELY UNLIKELY SIT; IF IT IS AS SUSPECTED; IT COULD BE VERY SERIOUS. RELATING TO THE A320; THOUGH NOT SPECIFICALLY RELATED TO THIS INCIDENT OR RPT; THE CAPT ALSO BELIEVES THERE IS ANOTHER POTENTIAL PROB WITH OPERATING THE ENGS. THAT IS; PWR AVAILABLE FOR WINDSHEAR RECOVERY. WHEREAS IN OTHER ACFT THE ENGS CAN BE 'FIREWALLED;' EVEN THOUGH IT MAY BE GREATER THAN MAX TKOF GAR (TOGA); THE ENGS ON THE A320 ARE LIMITED TO MAX TOGA. THE QUESTION THE RPTR CAPT ADDRESSES IS; WHAT IF YOU NEED EVERYTHING THE ENG IS CAPABLE OF PUTTING OUT; EVEN IF IT DAMAGES THE ENG; IT IS BETTER TO RECOVER THAN TO SAVE THE ENG. AGAIN; IT IS HIGHLY UNLIKELY THAT SUCH A SIT COULD DEVELOP; BUT THE POTENTIAL IS THERE. RPTR WOULD LIKE TO SEE SOME INTERCONNECT THAT; WHEN ENCOUNTERING WINDSHEAR; WOULD BYPASS THE TOGA LIMITS AND ALLOW THE ENG TO GO TO ITS ABSOLUTE MAX CAPABILITY.