What was found
#1 ENG AT 9 O`CLOCK LP COMPRESSOR CASE OUTER SURFACE HAS CORROSION IN EXCESS OF 10 AROUND (FWD) MATING FLANGE TO INLET (UNDER KEVLAR WRAP). REMOVED AND REPLACED #1 ENGINE.
- Difficulty date
- October 23, 2020
- Submitted
- February 12, 2021
- Operation
- Air carrier
- Aircraft
- N970FD
- Make and model
- Boeing 75728A
- Aircraft serial
- 28166
- Aircraft time
- 67,179 hours, 23,468 cycles
- Engine
- Rroyce RB211535E4
- System (JASC)
- 7230 · Turbine Engine Compressor Section
- Part
- Case
- Condition
- Corroded
- Location
- Nr 1 Compressor
- 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.