What was found
NR 1 ENGINE REAR FLANGE ASSY CRACKED AT SEVERAL FASTENER HOLES. ACFT GROUNDED. INSPECTED IAW MM 72-56-00-211-803-F00 IAW STEP D1, B1. NO CRACKS ALLOWED. REPLACED NR 1 ENGINE REAR FLANGE, IAW MM 72-56-00-400-801.
- Difficulty date
- January 29, 2015
- Submitted
- February 2, 2015
- Operation
- Air carrier
- Aircraft
- N531AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35199
- Aircraft time
- 18,532 hours, 5,644 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7250 · Turbine Section
- Part
- Flange
- Part number
- 3400359080
- Condition
- Cracked
- Location
- Nr 1 Engine
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.