# SDR 2002UALA01030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2002
- Submitted: July 30, 2002
- Operation: Air carrier
- Aircraft: [N774UA](https://openairdocs.org/aircraft/N774UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26936
- Aircraft time: 26,389 hours, 5,928 cycles
- Engine: Pwa PW4077
- Engine time: 23,889 hours, 5,377 cycles
- System (JASC): [7797 · Engine Indicating System Wiring](https://openairdocs.org/jasc/7797)
- Part: Wire Harness
- Part number: HAD21986
- Condition: Defective
- Location: Nr 2 Engine
- Part time: 20,000 hours, 5,000 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: J, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002UALA01030

## Discrepancy

INOPERATIVE EGT INDICATION ON NR 2 ENGINE.  REPLACED EGT HARNESS WO635 CHECKED CONTINUITY AND PERFORMED HIGH POWER RUNUP.  OPS CHECKED OK.  ALUMEL/CHROMEL TERMINALS ON LEG NR 4 SEPARATED FROM WIRES.  INSULATION BREAKDOWN.  RESISTANCE CHECKED AT 5 TO 50 MEGA OHMS (SHOULD BE 1000 TO 2000).

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