# SDR 4DPA2025040700002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2025
- Submitted: April 9, 2025
- Operation: Air carrier
- Aircraft: [N961JX](https://openairdocs.org/aircraft/N961JX), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145605
- Aircraft time: 40,184 hours, 31,783 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hose
- Part number: AE71379016
- Condition: Chafed
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/4DPA2025040700002

## Discrepancy

CREW REPORTED- ON INITIAL CLIMB AFTER TO FROM CSL, HYD1 QTY LOW EICAS APPEARED. HYD1 QTY INDICATED TOP OF AMBER BAND. WITHIN APPROXIMATELY ONE HOUR, HYD1 QTY DECREASED TO 0 AND PRESSURE BEGAN FLUCTUATING. SHORTLY AFTERWARDS HYD1 SYS FAIL EICAS APPEARED. FOLLOWED QRH AND LANDED LAX. MX ACTION- MX TECH FOUND L/H ENGINE DRIVEN PUMP HYDRAULIC PRESSURE HOSE CHAFED AND LEAKING ALONG MID LENGTH. REPLACED LEAKING HOSE ASSY AND SYS #1 ENG DRIVEN PUMP. PUMP ASSY PN: OFF/ON 971808 / 971808 SN: OFF/ON MX646929 / MX636936 HOSE ASSY PN: OFF /ON AE713790-16, NSN.

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