# SDR AALA20150604008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2015
- Submitted: June 5, 2015
- Operation: Air carrier
- Aircraft: N426AA
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49338
- Aircraft time: 80,889 hours, 43,475 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Accumulator
- Condition: Underserviced
- Location: Rudder
- Stage of operation: CL
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150604008

## Discrepancy

EMERGENCY DECLARED, LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT.  EXPERIENCING UNCOMMANDED RUDDER INPUTS DURING CLIMB.  FOUND RUDDER ACCUMULATOR AT ZERO.  SERVICED ACCUMULATOR IAW AMM 27-20-15.  PERFORMED RUDDER THRU LIMITER SENSOR CHECK IAW AMM 27-20-06, YAW DAMPER ACTUATOR NULL POSITION IAW AMM 22-13-01. SYSTEM CHECKED NORMAL.

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