# SDR QXEA2026012800018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2026
- Submitted: January 28, 2026
- Operation: Air carrier
- Aircraft: [N625QX](https://openairdocs.org/aircraft/N625QX), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000658
- Aircraft time: 22,618 hours, 15,600 cycles
- System (JASC): [3200 · Landing Gear System](https://openairdocs.org/jasc/3200)
- Part: Unknown
- Condition: Faulted
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA2026012800018

## Discrepancy

AT FL 330, RIGHT BEFORE DESCENT, STRONG THUMPING FELT IN FLOOR. IT FELT LIKE IT WAS NEAR THE FLIGHT DECK. THIS LASTED APPROX 10 MIN. AFTER THAT THE REST OF THE DESCENT WAS NORMAL UNTIL PASSING 10,000 FT. THUMPING IN FLOOR RESTARTED FOR SEVERAL MIN. BOTH F/A'S SAID THAT THEY COULD HEAR AND FEEL THE THUMPING ABOUT AT ROW 4. REMOVED FROM SERVICE. PERFORMED RIGGING AND FUNCTIONAL TEST OF NLG UPLOCK 2 SENSOR AND REPLACEMENT OF SENSOR. WIRING CHECKS PSEM2 TO NLG UPLOCK2 SENSOR PLUG, AND REPLACEMENT OF PSEM2. OPERATIONAL CHECK FLIGHT FAILED. AIRCRAFT REMAINS OUT OF SERVICE.

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