What was found
NR 1 MAIN OIL - FUEL HEAT EXCHANGER LEAKING. ACFT GROUNDED. REMOVED & REPLACED THE OIL - FUEL HEAT EXCHANGER IAW AMM 79-21-02-00-801-F00 & AMM 79-21-02-400-801. IDLE LEAK & OPS CHECKED GOOD. NO FURTHER DEFECTS NOTED.
- Difficulty date
- November 20, 2016
- Submitted
- November 28, 2016
- Operation
- Air carrier
- Aircraft
- N514AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35193
- Aircraft time
- 31,070 hours, 9,385 cycles
- System (JASC)
- 7920 · Engine Oil Distribution (Airframe Furnished)
- Part
- Heat Exchanger
- Part number
- 453328039
- Part serial
- YB038452
- Condition
- Leaking
- Location
- Oil - Fuel
- Part time
- 31,124 hours, 9,404 cycles
- 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.