What was found
TORQUE CHECK FAILED ON FUEL INLET TUBE ON #2 ENGINE MAIN OIL/FUEL HEAT EXCHANGER. GROUNDED - YES. REPLACED #2 ENGINE MAIN OIL/FUEL HEAT EXCHANGER PER B737-900ER AMM 79-21-02. LEAK CHECK GOOD.
- Difficulty date
- September 26, 2021
- Submitted
- September 28, 2021
- Operation
- Air carrier
- Aircraft
- N402AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41189
- Aircraft time
- 32,987 hours, 10,621 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7920 · Engine Oil Distribution (Airframe Furnished)
- Part
- Heat Exchanger
- Part number
- 118411934
- Part serial
- YP029781
- Condition
- Failed
- Location
- #2 Engine
- Part time
- 6,698 hours, 2,029 cycles
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.