- Difficulty date
- November 17, 2022
- Submitted
- November 21, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35198
- Aircraft time
- 44,749 hours, 13,173 cycles
- Engine
- Cfmint CFM567B20
- Part
- Rub Strip
- Part number
- 3400018160
- Condition
- Debonded
- Location
- #1 Engine
- Stage of operation
- IN
- How discovered
- V
- 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
REF ASA T/C 78472010 #1 ENG. CFM56-7 FAN BLADE LUBRICATION. FOUND PLATFORM #8 HAS BOTH RUBSTRIPS DEBONDED HALF WAY DOWN. #8 IS PRE-SERVICE (816) REQ #20 TO BE REPLACED. GROUNDED - YES. REPLACED #8 AND #20 PLATFORM IAW T/C 78472010 STEP 1.C.(3) AND 1.A.(35). (817-7 PLATFORMS INSTALLED. VIBE SURVEY ACCOMPLISHED REF T/C 78472010. VIBES NORMAL LIMITS.