# SDR UALA2010083003189

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2010
- Submitted: August 31, 2010
- Operation: Air carrier
- Aircraft: [N222UA](https://openairdocs.org/aircraft/N222UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30553
- Aircraft time: 38,454 hours, 4,676 cycles
- Engine: Pwa PW4090
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Heat Exchanger
- Condition: Leaking
- Location: Nr 2 Engine
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010083003189

## Discrepancy

NR 2 ENG BLEED AIR HEAT EXCHANGER LT LOWER BROKEN, LEAKING HOT BLEED AIR SEVERELY.  REPLACED WITH NEW PRECOOLER, NO LEAK FOUND.

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