# SDR JJBA20210527027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2021
- Submitted: June 2, 2021
- Operation: Air carrier
- Aircraft: N15910
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145455
- Aircraft time: 53,228 hours, 33,675 cycles
- System (JASC): [3297 · Landing Gear System Wiring](https://openairdocs.org/jasc/3297)
- Part: Electronic Unit
- Part number: 355022003
- Part serial: 4161
- Condition: Inoperative
- Location: Mlg
- Part time: 15,745 hours, 12,116 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/JJBA20210527027

## Discrepancy

AIR/GRD FAIL MESSAGE IN FLIGHT (WHEN GEAR WAS SELECTED DOWN MESSAGE APPEARED, THEY DID GET # GREEN DOWN AND LOCKED - MESSAGE STAYED ON UNTIL TOUCHDOWN). REMOVED AND REPLACED UPPER AND LOWER WOW SWITCH ON LH GEAR. R&R LGEU. OPS CECK SAT. NO FAULT NOTED. ALSO HOOK UP PROX SWITCH BOX AND PERFORMED GEAR SWINGS. NO FAULT NOTED.

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