# SDR CALA2026081318571

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2026
- Submitted: August 13, 2026
- Operation: Air carrier
- Aircraft: [N898UA](https://openairdocs.org/aircraft/N898UA), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 3311
- Aircraft time: 49,878 hours, 29,950 cycles
- Engine: Iae V2524A5
- System (JASC): [3250 · Landing Gear Steering System](https://openairdocs.org/jasc/3250)
- Part: Control Module
- Part number: C247360013
- Part serial: 3470
- Condition: Faulted
- Location: Nlg Steering
- Part time: 49,877 hours, 29,950 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: B, E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026081318571

## Discrepancy

AFTER NR 1 ENG START LOUD HARMONIC VIBRATION NOISE UNDER FLT DECK FLOOR,  STARTED ENGINE 1 & OBSERVED LOW HARMONIC HUM OR BUZZ. STARTED ENGINE 2 BUZZ REMAINED. DESELECTED ENGINE 1 HYD PUMP & THEN ENGAGED PUMP AGAIN. NO FLUCTUATIONS OBSERVED IN GREEN SYS QTY OR PRESSURE.  PRESSURE REMAINED ABOVE 3000 PSI. RAN BOTH ENGINES FOR 15 MINS.  UPON SHUTDOWN OF BOTH ENG 1 & 2,  NOTICED OIL ODOR. R & R NOSE STEERING CONTROL MODULE IAW AMM 32-51-51. OPS CHKD IAW 32-51-00,  CHKD GOOD.

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