# SDR UALA2010061002030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2010
- Submitted: June 11, 2010
- Operation: Air carrier
- Aircraft: [N791UA](https://openairdocs.org/aircraft/N791UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26933
- Aircraft time: 55,900 hours, 8,254 cycles
- Engine: Pwa PW4090
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Condition: Leaking
- Location: Hyd System
- Stage of operation: IN
- How discovered: 9
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010061002030

## Discrepancy

NR 1 ENG HYD LEAK.  NR1 ENG HYD PUMP SUPPLY LINE DAMAGED AND LEAKING AT TOP OF LINE.  REPLACED NR1 HYD SUPPLY LINE, LEAK CKD OK. SUSPECT HYD LEAK BEHIND NR 1 ENG SUPPLY HOSE BLANKET. REPLACED NR 1 ENG HYD PRESS HOSE FROM PYLON DISCONNECT TO EDP, LEAK CHECKED OK.   NR1 ENG HYD LINE INSULATION BLANKET HAS BIG BURN HOLE ON BACK  AFT SIDE.  REPLACED INSULATION BLANKET NR 1 ENG.

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