- Difficulty date
- January 3, 2023
- Submitted
- January 6, 2023
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 39044
- Aircraft time
- 50,798 hours, 15,082 cycles
- Engine
- Cfmint CFM567B20
- Engine time
- 45,889 hours, 13,569 cycles
- Part
- Hook
- Part number
- CFM567BQEC2
- Condition
- Worn
- Location
- Nr 2 Engine
- Part time
- 45,889 hours, 13,569 cycles
- Stage of operation
- IN
- How discovered
- B
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING ASA TC SBCFM56-7B-72-1074-1 #2 ENG ESN 896761. FOUND HPC STAGE 4 ROTOR & J-HOOK SEAL CONTACTING BEYOND LIMITS STEP 8-1 (WORN COMPLETELY THROUGH) AT 6 O'CLOCK POSITION. GROUNDED - YES. REMOVED ENGINE S/N # 896761 AND INSTALLED ENGINE S/N 660243. REF. ASA T/C # 78741000. DEFECTS TRANSFERRED TO ASA SHOP W/O # 1937317 N/R# 00001.