Service difficulty report · Heat Exchanger · Boeing 737890
FAA SDR system
- Difficulty date
- September 21, 2017
- Submitted
- September 25, 2017
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35683
- Aircraft time
- 38,448 hours, 11,495 cycles
- Engine
- Cfmint CFM567B27B3
- Part
- Heat Exchanger
- Part number
- 453328039
- Part serial
- YB030230
- Condition
- Leaking
- Location
- Nr 2 Engine Oil
- Part time
- 34,876 hours, 10,675 cycles
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- K
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE OIL-FUEL HEAT EXCHANGER LEAKS AT FUEL PUMP GASKET INTERFACE. ACFT GROUNDED. REMOVED MAIN OIL FUEL HEAT EXCHANGER AMD SERVO FUEL HEATER IAW AMM 79-21-02-000-801-F00 AND 73-11-07-000-801-F00. INSTALLED NEW NR 2 ENGINE OIL-FUEL HEAT EXCHANGER IAW AMM 79-21-02-400, STEP 3. LEAK & OPS CHECKED GOOD.