# SDR AALA202504170737

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2025
- Submitted: April 17, 2025
- Operation: Air carrier
- Aircraft: [N300UB](https://openairdocs.org/aircraft/N300UB), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 44506
- Aircraft time: 591 hours, 226 cycles
- System (JASC): [3431 · Localizer/VOR System](https://openairdocs.org/jasc/3431)
- Part: Antenna
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202504170737

## Discrepancy

AIRCRAFT WAS GROUNDED: REPEAT RECURRING ISSUE WITH GEAR WARNING HORN GOES OFF WHEN THROTTLES PULLED BACK, ALONG WITH 3 RED GEAR LIGHTS. HORN CUTOUT WILL SILENCE THE HORN.HAD TO REDUCE SPEED IN CRUISE AND WHEN THRUST WAS REDUCED, THE HORN WENT OFF.  REPLACED LRRA SYSTEMS 1 (AALA202504165893) AND 2 (AALA202504170737) ANTENNAS AND TESTED GOOD, PER AMM 34-31-11. PERFORMED J/C 09C21031001 OPERATIONAL TEST LANDING GEAR LOGIC MODULE OUTPUT TO THE AURAL WARNING MODULE, NO FAULTS NOTED.

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