# SDR IPXA2018040328112

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2018
- Submitted: April 4, 2018
- Operation: Air carrier
- Aircraft: [N461UP](https://openairdocs.org/aircraft/N461UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 28265
- Aircraft time: 33,388 hours, 16,308 cycles
- System (JASC): [7730 · Engine Ignition Analyzer System](https://openairdocs.org/jasc/7730)
- Part: Transmitter
- Condition: False Activation
- Location: Engine Vibration
- Stage of operation: AP
- How discovered: O
- Nature of condition: E
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2018040328112

## Discrepancy

DURING  FLIGHT,  SHUTDOWN THE LT ENGINE,  VIBRATION READS 5.0,  ENGINE INDICATIONS NORMAL.  VIBRATION REMAINED ABOVE 2.5 WITH THRUST LEVEL RETARDED TO IDLE.  THE ENGINE WAS SHUT DOWN .  NO VIBRATION WAS FELT.  CHECKED CHIP DETECTORS. IAW MM 78-00-00/601.  R & R THE LT VIBRATION TRANSMITTER IAW MM 77-31-01-404-022.

---
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.