What was found
NR 1 ENGINE, S/N 704883 FAILED OPN 5155 BOROSCOPE INSP DUE TO 1 EA 1ST STAGE NGV HAVING BURN THRU AREA BEYOND M/M LIMITS. ENGINE REMOVAL REQUIRED. ENGINE S/N 704883, REMOVED AND REPLACED PER TRANS 1T160.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 1 ENGINE, S/N 704883 FAILED OPN 5155 BOROSCOPE INSP DUE TO 1 EA 1ST STAGE NGV HAVING BURN THRU AREA BEYOND M/M LIMITS. ENGINE REMOVAL REQUIRED. ENGINE S/N 704883, REMOVED AND REPLACED PER TRANS 1T160.