Service difficulty report · Pressure Switch · Boeing 737890
FAA SDR system
- Difficulty date
- March 5, 2021
- Submitted
- March 11, 2021
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35185
- Aircraft time
- 51,531 hours, 15,386 cycles
- Engine
- Cfmint CFM567B27
- Part
- Pressure Switch
- Part number
- 8TJ201NAA1
- Part serial
- YY0980220
- Condition
- Failed
- Location
- #2 Engine Fuel
- Part time
- 10,392 hours, 2,108 cycles
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 FILTER BYPASS ILLUMINATED DURING PUSHBACK/ENGINE START. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF B737-800 AMM 73-34-01. REMOVED AND REPLACED #2 ENGINE J8 WIRE HARNESS REF AMM 73-21-06. ALL TESTS PASS. LEAK CKS GOOD. #2 FUEL FILTER BYPASS LIGHT OPS CKS GOOD. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.