# SDR UALA2011022200898

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2011
- Submitted: March 17, 2011
- Operation: Air carrier
- Aircraft: [N652UA](https://openairdocs.org/aircraft/N652UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25390
- Aircraft time: 81,027 hours, 13,044 cycles
- Engine: Pwa PW4060
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Heat Exchanger
- Part number: 51G760600U
- Part serial: F12696
- Condition: Faulty
- Location: Idg Oil
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011022200898

## Discrepancy

DUE TO HISTORY OF RT IDG DRIVE LIGHT ON IN FLIGHT AND POSSIBLE FUEL CONTAMINATION AT TERMINATION OF FLT REPLACE IDG AIR-OIL HEAT EXCHANGER AND VALVE.  (HEAT EXCHANGER AND VALVE SHOULD BE REPLACED AS AN ASSY).  AIR OIL COOLER REPLACED IAW MM.

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