AN ACR E145 FLC HAD THE #2 ENG FLAME OUT WHILE PERFORMING A STAR. THEY WERE ABLE TO GET A RELIGHT AFTER COMPLETING THE APPROPRIATE CHKLISTS. THE RPTR COMPLAINS THAT THE ALLISON AE3007A ENG PROBS HAVE BEEN EXCESSIVE. IN THIS CASE; THE PROB WAS A FAULTY INSTANTANEOUS TAILPIPE TEMP SENSOR.

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WHILE XING HOAGI INTXN ON THE CUGAR 6 ARR INTO IAH OPERATING AS A FLT FOR AN ACR WE RECEIVED A MASTER WARNING MESSAGE 'ENG #2 LOW N1.' WE RAN THE EMER CHKLIST AND DETERMINED THIS WAS A RESULT OF A FLAMEOUT. OUR CHKLIST CALLED FOR AN AIR START AND WE REGAINED PWR ON OUR #2 ENG. THE CAPT COMPLIED WITH ALL ATC INSTRUCTIONS WHILE ALL CHKLISTS WERE ACCOMPLISHED IN A TIMELY FASHION. HOWEVER; NO EMER WAS DECLARED BECAUSE OF THE SUCCESSFUL RESTART. THE ACFT WAS LESS THAN 6 MONTHS OLD AND THERE HAVE BEEN SEVERAL ENG COMPLICATIONS INVOLVING THE EMB145 JET FROM ITS ENTRY INTO SVC. IT IS MY OPINION THE FAA NEEDS TO TAKE A MORE ACTIVE ROLE IN RESOLVING THE MAINT PROBS FROM EMBRAER CONCERNING THE ALLISON ENGS ON THE EMB145. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE ENG SHUTDOWN WAS CAUSED BY THE INSTANTANEOUS TAILPIPE TEMP SENSOR ERRONEOUSLY SENDING AN OVERTEMP SIGNAL TO THE FULL AUTH DIGITAL ENG CTL AND IT SHUT DOWN THE ENG IN ORDER TO SAVE IT FROM DAMAGE. THE FO QUESTIONS THIS PHILOSOPHY. HE SAID THAT THERE IS A CHANCE OF THIS SYS SHUTTING OFF BOTH ENGS IN A CRITICAL PHASE OF FLT AND; REGARDLESS OF THE REASON FOR THE SHUTDOWN; THE CREW WOULD BE HELPLESS TO RECOVER. HE FEELS THAT THIS SYS REMOVES THE OPTION OF OPERATING THE ENGS AS NECESSARY FOR THE SURVIVAL OF THE PEOPLE AND INSTEAD PLACES THE EMPHASIS ON THE SURVIVAL OF A PIECE OF EQUIP. THIS FO WAS FLYING AN EMBRAER EMB145ER EQUIPPED WITH THE ALLISON AE3007-A1 ENG AND HE STATES THAT ALL OF THE ENG FAILURES THAT HE KNOWS ABOUT HAVE OCCURRED WITH THIS MODEL. RECENTLY HE FLEW AN EMB145LR EQUIPPED WITH THE ALLISON AE3007-A3 ENG WITH A DIFFERENT FULL AUTH DIGITAL ENG CTL SYS WITH NO TROUBLE. HE SAID IF THE NEW SYS PROVES MORE RELIABLE; HE WOULD ADVOCATE RETROFITTING IT TO THE OLDER ACFT. THE RPTR SAID THAT HE KNOWS OF SEVERAL ENG FAILURES IN THE OLDER ACFT INCLUDING ONE THAT OCCURRED LAST WK. HE SAID THAT THE MANUFACTURER AND THE COMPANY HAVE FOR AN INTERIM FIX ADOPTED A COMPLEX ENG START PROC THAT EXERCISES AND RECHKS ALL OF THE ENG CTL SYS AFTER EACH START TO ASSURE THAT ALL THESE SYS ARE RESET FROM THEIR TAXI-IN SETTINGS. THE CREW INVOLVED IN THE MOST RECENT ENG FAILURE ALLEGEDLY DID NOT FOLLOW THE NEW PROC AND HAVE BEEN CRITIQUED. HE HAS NEVER BEEN INVOLVED IN THE INTRODUCTION OF A NEW TYPE OF ACFT AND ADMITS THAT HE FINDS IT DISCONCERTING TO HAVE TO CONTINUOUSLY MODIFY PROCS AS THE EQUIP IS MODIFIED OR MORE IS LEARNED ABOUT ITS CHARACTERISTICS. HE SAID THE NEW PROC LEAVES ONE OF THE FULL AUTH DIGITAL ENG CTL SYS IN THE STANDBY MODE AFTER IT HAS BEEN CHKED FOR PROPER OP. HE HOPES THAT THIS WORKS.