# SDR AALA202207142209

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 13, 2022
- Submitted: July 14, 2022
- Operation: Air carrier
- Aircraft: [N948AN](https://openairdocs.org/aircraft/N948AN), registered now
- Make and model: Boeing 737
- Aircraft serial: 30086
- Aircraft time: 62,664 hours, 25,915 cycles
- System (JASC): [2797 · Flight Control System Wiring](https://openairdocs.org/jasc/2797)
- Part: Hydraulic System
- Condition: Underserviced
- Location: Zone 100 - Fuse
- Stage of operation: TO
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202207142209

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: ON TAKE OFF ROLL (OAT 111 F) STANDBY RUDDER ON LIGHT ILLUMINATED FOLLOWED BY FLIGHT CONTROL B LOW PRESSURE LIGHT. STANDBY RUDDER LIGHT THEN WENT OUT. SELECTING STANDBY RUDDER ON WITH FLIGHT CONTROL B SWITCH DISCONNECTED YAW DAMPER AND ILLUMINATED YAW DAMPER LIGHT. FOUND SYSTEM HYDRAULIC (B) IN NEED OF SERVICING. SERVICED HYDRAULIC (B) PER AMM 29-18-01.

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