# SDR ASAA2015011910294

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2015
- Submitted: January 21, 2015
- Operation: Air carrier
- Aircraft: [N568AS](https://openairdocs.org/aircraft/N568AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35183
- Aircraft time: 30,578 hours, 9,482 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Sensor
- Part number: H504B
- Part serial: 22416
- Condition: Out Of Limits
- Location: Elevator
- Part time: 3,607 hours, 1,105 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015011910294

## Discrepancy

WHILE ACCOMPLISHING ELEVATOR RIGGING TEST, FOUND ELEVATOR POSITION SENSOR VALUES OUT OF LIMITS.  ACFT GROUNDED.  ADJUSTED ELEVATOR POSITION SENSOR, REF MM 22-11-30-820-801.  ADDITIONAL LWMP TESTS REQUIRED.  ELEV POS SENSOR STILL FAILS ELECTRICAL RIGGING TEST.  NEEDS REPLACEMENT.  REPLACED ELEVATOR POSITION SENSOR, OPS CHECK GOOD MM 22-11-30.  ADDITIONAL LWMP TEST DFCS BITE GRP 47, NORMAL.  ACFT REMAINS CAT IIIA AUTOLAND AND HGS QUALIFIED.  STATUS PLACARD VERIFIED TO REFLECT SAME.

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