Narrative:

Aircraft xyz came in with write-up that aural warnings were only coming from captain's overhead speaker. Replaced flight warning computer and tested system as per maintenance manual chapter 31 using line test equipment. System operations tested ok and aural warnings were present from both cockpit overhead speakers. Did not make appropriate CAT IIIA entry in logbook. Was called the same afternoon and informed that I had installed the wrong plan flight warning computer. I got my information for the part number for the computer I installed from our shop parts reference book. Apparently, our shop parts reference book had not been updated. Our quality assurance department caught the discrepancy after the aircraft left ZZZ and the aircraft was ferried from XXX, us, to ZZZ for repair.

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Original NASA ASRS Text

Title: A FOKKER 100 WAS DISPATCHED IN NON COMPLIANCE WITH THE INCORRECT FLT WARNING COMPUTER INSTALLED DUE TO PUB DEFICIENCY.

Narrative: ACFT XYZ CAME IN WITH WRITE-UP THAT AURAL WARNINGS WERE ONLY COMING FROM CAPT'S OVERHEAD SPEAKER. REPLACED FLT WARNING COMPUTER AND TESTED SYS AS PER MAINT MANUAL CHAPTER 31 USING LINE TEST EQUIP. SYS OPS TESTED OK AND AURAL WARNINGS WERE PRESENT FROM BOTH COCKPIT OVERHEAD SPEAKERS. DID NOT MAKE APPROPRIATE CAT IIIA ENTRY IN LOGBOOK. WAS CALLED THE SAME AFTERNOON AND INFORMED THAT I HAD INSTALLED THE WRONG PLAN FLT WARNING COMPUTER. I GOT MY INFO FOR THE PART NUMBER FOR THE COMPUTER I INSTALLED FROM OUR SHOP PARTS REF BOOK. APPARENTLY, OUR SHOP PARTS REF BOOK HAD NOT BEEN UPDATED. OUR QUALITY ASSURANCE DEPT CAUGHT THE DISCREPANCY AFTER THE ACFT LEFT ZZZ AND THE ACFT WAS FERRIED FROM XXX, US, TO ZZZ FOR REPAIR.

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.