# SDR AALA20150415001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2015
- Submitted: April 16, 2015
- Operation: Air carrier
- Aircraft: [N886NN](https://openairdocs.org/aircraft/N886NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33223
- Aircraft time: 10,338 hours, 4,027 cycles
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Pcu
- Condition: Bypassing
- Location: Zone 300
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150415001

## Discrepancy

JUST PRIOR TO TOP OF DESCENT AT FL 410 TREMENDOUS AMOUNT OF FORE & AFT PLAY IN THE CONTROL COLUMN WITH AUTO PILOT ON.  DESCENDING THROUGH LOWER ALTITUDES SYMPTOMS IMPROVED BUT STILL PLAY IN THE CONTROL COLUMN & ELEVATOR WAS STILL FEELING SOFT.  EMERGENCY DECLARED, LANDING UNEVENTFUL.  FOUND RT ELEVATOR PCU BYPASSING.  R & R RT ELEVATOR PCU IAW AMM 27-31-14-401.  PERFORMED LEAK CHECK.  SYS CHECKED NORMAL.

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