# SDR QXEA2026051300121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2026
- Submitted: May 13, 2026
- Operation: Air carrier
- Aircraft: [N663QX](https://openairdocs.org/aircraft/N663QX), 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: 17000961
- Aircraft time: 5,660 hours, 4,788 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Pressure Switch
- Part number: 2343H000001
- Condition: Malfunctioned
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA2026051300121

## Discrepancy

FLIGHT 2410. BELOW ACELL HT CYAN MSG HYD2 ELEC PUMP FAIL MESSAGE WENT AWAY WHEN FLAPS 1 SELECTED ON APPROACH MESSAGE REAPPEARED FOLLOWED CHECKLIST NO MALFUNCTION NOTED. SHUT ENGINE #2 DOWN & GOT HYD#2 LO PRESS CAUTION. REMOVED FROM SERVICE. INTERROGATED CMC FOUND FAULT CODES 293100032UT1, 29310034UT1. PERFORMED FIMS 29-31-00-810-821-A STEPS 1-7H(2). (NA ITEMS 7C-E). NO HELP. AND FIM 29-10-00-810-808-A STEPS 1-7C PARTIAL SUCCESS. HYD SYSTEM SHOWS MORE THAN 2400, BUT ACMP 2B OUTLINE IS NOT IN GREEN, PUMP IS RUNNING. SAME RESULTS AFTER POWER CYCLE. . CONTINUED TROUBLESHOOTING PER FIM 29-31-00-810-821-A. PER STEP 7L VERIFIED #2 HYD PRESSURE SWITCH AT FAULT. R&R #2 ACMP PRESSURE SWITCH PER AMM 29-31-04-000-801-A/-400-801-A. OPS CHECK GOOD DISCREPANCEIES DID NOT RETURN. AIRCRAFT IS OKAY FOR CONTINUED SERVICE. NO LEAKS NOTED. CDCCL INSP C/W PER AMM 28-41-00-210-801-A. RETURNED TO SERVICE.

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