What was found
DURING QRH FOR COMPRESSOR STALL WE RECEIVED LEVEL 2 ENG 2 LOOP A ALERT/ POSSIBLE ENGINE FIRE. THE QRH PROCEDURES SHOWED NO FIRE SO WE LEFT ENG 2 AT IDLE WITH ENG 2 LOOP SWITCH IN B POSITION. #2 ENGINE FIRE DETECT SYSTEM OPS CHECK GOOD IAW MD10-10 MM 26-11-02-5 & 26-10-00-5. 2 EA PYLON DETECTORS REPLACED : P/N FOR ALL 4 UNITS REMOVED & INSTALLED IS 3851-01- 1350/825-7. (LOOP A S/N OFF: 200641 ; S/N ON: 200357) (LOOB B S/N OFF: 200429 : S/N ON 200582) . FIRE DETECTORS MANUFACTURED BY MEGGITT. AFT FIRE BARRIER WAS ALSO REPLACED, P/N AUL7058-1 (NO S/N)