What was found
NR 1 ENGINE TURBINE COOLING DUCT-Y HAS AREA OF HEAVY WEAR, CHAFING FROM CONTACT WITH C-DUCT HEAT SHIELD. ACFT GROUNDED. REPLACED NR 1 ENGINE TURBINE COOLING Y-DUCT, REF CFM56-7, ESM 720000430-006C60.
- Difficulty date
- March 8, 2016
- Submitted
- March 10, 2016
- Operation
- Air carrier
- Aircraft
- N538AS
- Make and model
- Boeing 737890
- Aircraft serial
- 41188
- Aircraft time
- 14,998 hours, 4,372 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7520 · Engine Cooling System
- Part
- Manifold
- Part number
- 3400276030
- Condition
- Worn
- Location
- Nr 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.