What was found
NR 1 ENGINE RECENT FAULT MESSAGE 77-11131, N-2 SPEED SENSOR SIGNAL DISAGREES. SHORT TERM FAULT. ACFT GROUNDED. ACCOMPLISHED FIM TASK 77-11, TASK 802. R & R N2 SENSOR. OPS CK GOOD REF AMM 77-11-02 & IPC 77-11-02-01A.
- Difficulty date
- October 29, 2014
- Submitted
- November 4, 2014
- Operation
- Air carrier
- Aircraft
- N402AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41189
- Aircraft time
- 7,812 hours, 2,489 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7710 · Power Indicating System
- Part
- Sensor
- Part number
- 3205490030
- Part serial
- YJ1926915
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 27,758 hours, 11,528 cycles
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.