# SDR AALA202309080865

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 2023
- Submitted: September 8, 2023
- Operation: Air carrier
- Aircraft: [N893NN](https://openairdocs.org/aircraft/N893NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33316
- Aircraft time: 33,384 hours, 14,168 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Pcu
- Part number: 4193001003
- Part serial: 41930004217
- Condition: Leaking
- Location: Zone 300 - Stabs
- Part time: 4,159 hours, 2,008 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202309080865

## Discrepancy

AIRCRAFT WAS GROUNDED: STRONG ODOR ON CLIMB OUT AND ON APPROACH. STRONG SMELL IN FLIGHT DECK AND CABIN. **SUPPLEMENTAL REPORT FOR AALA202309010865: MAINTENANCE TROUBLESHOOT HYDRAULIC FLUID LEAK TO MAIN RUDDER POWER CONTROL UNIT. MAIN RUDDER PCU WAS REMOVED AND REPLACED PER AMM 27-21-91.** (CLOSED).

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