What was found
UPON A NORMAL ENGINE START AT GATE, LEFT ENGINE EMITTED AN ABNORMAL PITCH NOISE FOLLOWED BY A DROP IN N1 SPEED AND A RISE IN ITT INDICATION. OTHER ENGINE INDICATIONS ALSO, INDICATED ABNORMAL INDICATIONS. ENGINE WAS REPLACED. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UPON A NORMAL ENGINE START AT GATE, LEFT ENGINE EMITTED AN ABNORMAL PITCH NOISE FOLLOWED BY A DROP IN N1 SPEED AND A RISE IN ITT INDICATION. OTHER ENGINE INDICATIONS ALSO, INDICATED ABNORMAL INDICATIONS. ENGINE WAS REPLACED. (M)