Narrative:

Aircraft X was in maintenance hangar at pit. While other maintenance was being performed, both stall warning computers were robbed for another aircraft. After completion of unrelated maintenance the stall warning computers had not been replaced and only 1 was available from stock. Due to the lack of a second computer another aircraft in hangar, aircraft Y, was robbed of 1 stall computer, which was installed in aircraft X on dec/xa/95 in syr. A pilot discrepancy was generated for 'stall warning failure light.' it was discovered the computer robbed from aircraft Y was not compatible with the computer from stock which were installed in aircraft X. A compatible computer was installed in aircraft X and the item was cleared.

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Original NASA ASRS Text

Title: A STALL WARNING COMPUTER CANNIBALIZED FROM 1 DC9 WAS DETERMINED TO BE INCOMPATIBLE WITH THE OTHER DC9 AFTER THE ACFT HAD FLOWN A REVENUE FLT.

Narrative: ACFT X WAS IN MAINT HANGAR AT PIT. WHILE OTHER MAINT WAS BEING PERFORMED, BOTH STALL WARNING COMPUTERS WERE ROBBED FOR ANOTHER ACFT. AFTER COMPLETION OF UNRELATED MAINT THE STALL WARNING COMPUTERS HAD NOT BEEN REPLACED AND ONLY 1 WAS AVAILABLE FROM STOCK. DUE TO THE LACK OF A SECOND COMPUTER ANOTHER ACFT IN HANGAR, ACFT Y, WAS ROBBED OF 1 STALL COMPUTER, WHICH WAS INSTALLED IN ACFT X ON DEC/XA/95 IN SYR. A PLT DISCREPANCY WAS GENERATED FOR 'STALL WARNING FAILURE LIGHT.' IT WAS DISCOVERED THE COMPUTER ROBBED FROM ACFT Y WAS NOT COMPATIBLE WITH THE COMPUTER FROM STOCK WHICH WERE INSTALLED IN ACFT X. A COMPATIBLE COMPUTER WAS INSTALLED IN ACFT X AND THE ITEM WAS CLRED.

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.