# SDR GUUA10130601

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2006
- Submitted: October 17, 2006
- Operation: Air carrier
- Aircraft: N285AS
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120265
- Aircraft time: 29,435 hours, 29,162 cycles
- Engine: Pwa PW118
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Altimeter
- Part number: 6220954002
- Part serial: 69713411
- Condition: Corroded
- Location: Cockpit
- Stage of operation: DE
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GUUA10130601

## Discrepancy

DURING APPROACH, LANDING GEAR WARNING HORN ACTIVATES AT 3,000 FEET AND CANNOT BE SILENCED UNTIL THE GEAR IS DOWN AND LOCKED.  REPLACED BOTH RADIO ALTIMETER ANTENNAS.  OPERATIONAL CHECK GOOD.

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