Service difficulty report · Engine · Boeing 757223

Difficulty date
May 18, 2015
Submitted
May 20, 2015
Operation
Air carrier
Aircraft
N688AA
Make and model
Boeing 757223
Aircraft serial
25730
Aircraft time
79,867 hours, 22,006 cycles
Engine
Rroyce RB211535E4
Engine time
68,604 hours, 22,669 cycles
Part
Engine
Condition
Bird Ingestion
Location
Nr 1
Stage of operation
CL
How discovered
O
Nature of condition
C, E
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING CLIMB A HARD BIRD STRIKE DOWN THE LT SIDE OCCURRED. THE LT ENGINE EXPERIENCED A VIBRATION SPIKE OF 1.4 N-3. RETARDED THROTTLES & VIBRATIONS CEASED. NOTED EVIDENCE OF CORE INGESTION IN THE NR 1 ENGINE. PERFORMED INSPECTION CARD 05-96-14 & FOUND NR 1 ENG MISSING ANNULUS STRIP, MISSING AT 11 O’CLOCK POSITION, SCHEDULED FOR REPLACEMENT. PERFORMED VIBRATION SURVEY TEST NR 6 & TEST NR 5 IAW AMM TASK 71-00-00-715-327-RO3. SYS CHECKED NORMAL.