# SDR CALA2021061400873

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2021
- Submitted: June 14, 2021
- Operation: Air carrier
- Aircraft: [N25705](https://openairdocs.org/aircraft/N25705), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28766
- Aircraft time: 72,217 hours, 25,821 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Pcu
- Condition: Leaking
- Location: Rudder
- Stage of operation: IN
- How discovered: 9
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021061400873

## Discrepancy

STANDBY RUDDER POWER CONTROL UNIT APPEARS TO BE LEAKING AT FORWARD LOWER "B" NUT OR UNION. SECURED B NUTS. CLEANED AREA. OPPERATED STANDBY HYDRAULICS AND CYCLED RUDDER SEVERAL TIMES. NO LEAKS NOTED.

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