What was found
ON TAKEOFF SETTING OF STANDARD POWER, ENG 2 N1 GAUGE STOPPED AT APPROX 80 PERCENT (ANALOG/DIGITAL). RTO AT APPROX 100 KTS, NO ADVERSE YAW NOTED. ALL OTHER ENG 2 GAUGES APPEARED NORMAL AND CLOSE TO ENG 1 READINGS, ENT BY: 446285 RPT BY: 075405 FACT. REMOVED AND REPLACED NR 2 N1 GAUGE OPS CK OK REF A300MM 77-11-21-4. R/I FROM FACT PREMATURE REMOVAL/INSTALLATION OFF MFG 63601-460-1, POS NR 2 SRL 1134, TAG 660518, ON MFG 63601-460-1, SRL 1026, TAG 650528.