# SDR UALA2011083104669

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2011
- Submitted: September 22, 2011
- Operation: Air carrier
- Aircraft: [N823UA](https://openairdocs.org/aircraft/N823UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 952
- Aircraft time: 43,269 hours, 17,198 cycles
- Engine: Iae V2522A5
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 766219
- Part serial: 325
- Condition: Failed
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011083104669

## Discrepancy

NR 1 IDG FAILURE & APU AUTO SHUTDOWN, RTFL.  NR 1 ENG IDG LO OIL PRESS DISPLAYED, IDG DISCONNECTED.  APU GEN POWERING NORMALLY.  REPLACED IDG ON NR 1 ENG AND REPLACED APU LOW OIL PRESS SWITCH.  AFTER IDG CHANGE, RAN ENGINE AND HAD 0 FREQ AND 0 VOLTS.  SWAPPED GCU, RAN ENGINE AGAIN AND STILL NO HELP.  REPLACED OVERHEAD CONTROL SWITCH -NO HELP.  REPLACED EGIU (P/N 746923E - S/N 2117) PER FOREMAN REQUEST - NO HELP.  FOUND NR 1 ENGINE IDG HARNESS NOT FULLY SECURE.  REROUTED & SECURED HARNESS.  IDG OPS CHECKED GOOD.

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