# SDR HNAA2026021600121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2026
- Submitted: February 16, 2026
- Operation: Air carrier
- Aircraft: [N682AE](https://openairdocs.org/aircraft/N682AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500826
- Aircraft time: 46,987 hours, 44,496 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Contactor
- Part number: 51525014A
- Part serial: 96347
- Condition: Arced
- Location: Apu Generator
- Part time: 3,224 hours, 3,735 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2026021600121

## Discrepancy

APU GEN OVERLOAD FOLLOWED BY APU GEN FAIL FOLLOWED WITH APU SHUTDOWN WITH BURNING SMELL IN FLIGHT DECK WITH SMOKE FROM APU EXHAUST   MEL   14FEB26  13:49  CLT  C04522  49-1 APU AUXILIARY POWER UNIT DFRL  15FEB26  06:26  ALB   SEE HA 300 SEQ 7 OF ALB RON PACKAGE FOR TROUBLESHOOTING. R/R APU GCU AND APU STARTER GENERATOR NO FIX. FOUND EVIDENCE OF ARCING ON APU START CONTACTOR. R/R'D APU START CONTACTOR. NO FIX. REQUIRES FURTHER TROUBLESHOOTING. CONTINUE MEL 49-1.   FACT  17FEB26  03:05  RIC   STARTED AND STOPPED APU 3 TIMES IRT AMM 49-13-00-910-802/803-A OPS CHECK GOOD. OK FOR SERVICE. CLEAR MEL

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