- Difficulty date
- February 15, 2022
- Submitted
- February 23, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35683
- Aircraft time
- 52,836 hours, 15,761 cycles
- Part
- Sensor
- Part number
- 3205490050
- Part serial
- EM172319
- Condition
- Inoperative
- Location
- #1 Engine
- Part time
- 41,053 hours, 12,098 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.
What was found
#1 ENGINE TREND DATA SHOWS GREATER THAN EXPECTED DATA SCATTER IN DELTA CORE SPEEDINDICATION ERRORS ARE SUSPECT. GROUNDED - YES. REMOVED AND REPLACED N2 SPEED SENSOR IAW B737-800 AMM 77-11-02. OPS AND LEAK CHECK GOOF REF AMM 71-00-00-800-811-F00.