What was found
DUE TO OIL QUANTITY FELL TO L01 ON LEFT ENGINE. PRESSURE AND TEMP NORMAL. PRECAUTIONARY DIVERSION. FOUND THE NR 4 AND 5 BEARING SUPPLY OIL TUBE DAMAGE. REMOVED AND REPLACED THE OIL TUBE IAW AMM 70-00-01-400-804-H01. LEAK CHECKED GOOD.
- Difficulty date
- June 16, 2019
- Submitted
- January 29, 2020
- Operation
- Air carrier
- Aircraft
- N708DN
- Make and model
- Boeing 777232LR
- Aircraft serial
- 39254
- Aircraft time
- 53,182 hours, 4,743 cycles
- Engine
- Ge GE90110B1
- System (JASC)
- 7261 · Turbine Engine Oil System
- Part
- Tube
- Condition
- Damaged
- Location
- Bearing Supply
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.