# SDR UALA2012091905311

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2012
- Submitted: September 20, 2012
- Operation: Air carrier
- Aircraft: [N777UA](https://openairdocs.org/aircraft/N777UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26916
- Aircraft time: 70,626 hours, 12,734 cycles
- Engine: Pwa PW4077
- System (JASC): [7711 · Engine Pressure Ratio (EPR)](https://openairdocs.org/jasc/7711)
- Part: Sense Line
- Condition: Cracked
- Location: Lt Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012091905311

## Discrepancy

LEFT EEC FAILED.  LEFT UPPER PROBE AFT SENSE LINE PER FIM TASK 77-11 805 & MM 77-11-01.  REPLACED AFT LEFT UPPER PROBE SENSE LINE ACCT SEPARATED-CRACKED AT B-NUT ON PROBE END.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.