What was found
DURING CRUISE FLIGHT, N1 INDICATION FLUCTUATED INTERMITTENTLY, FOR THE NR 1 ENGINE. REMOVED AND REPLACED THE NR 1 ENG N1 FAN SPEED SENSOR IAW AMM 77-12-01. OPS CHECKED NORMAL IAW AMM 71-00-00.
- Difficulty date
- March 28, 2018
- Submitted
- April 3, 2018
- Operation
- Air carrier
- Aircraft
- N1709A
- Make and model
- Boeing 767375
- Aircraft serial
- 24086
- Aircraft time
- 90,521 hours, 20,750 cycles
- Engine
- Ge CF680C2B6F
- System (JASC)
- 7712 · Engine BMEP/Torque Indicating
- Part
- Sensor
- Part number
- 8TJ163AAB1
- Part serial
- GDB11390
- Condition
- Intermittent
- Location
- Nr 1 Fan Speed
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.