# SDR IPXA2575229

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2012
- Submitted: September 10, 2012
- Operation: Air carrier
- Aircraft: [N460UP](https://openairdocs.org/aircraft/N460UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25481
- Engine: Rroyce RB211535E4
- System (JASC): [7730 · Engine Ignition Analyzer System](https://openairdocs.org/jasc/7730)
- Part: Signal Cond Unit
- Condition: Inoperative
- Location: Nr 1 Eng
- Stage of operation: NR
- 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/IPXA2575229

## Discrepancy

NR 1 ENGINE VIBRATION INDICATION INOPERATIVE, AIR TURN BACK.  BOTH DIGITAL AND ARROW INDICATOR. R & R LT AVM SIGNAL CONDITIONER IAW MM 7KK7-31-03. OPS CHECKED OK.

---
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.