# SDR ZESA20140805001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2014
- Submitted: August 5, 2014
- Operation: Air carrier
- Aircraft: [N511TH](https://openairdocs.org/aircraft/N511TH), registered now
- Make and model: Cessna 560CESSNA
- Aircraft serial: 0561
- Aircraft time: 4,533 hours, 3,582 cycles
- Engine: Pwa PW535A
- Engine time: 4,484 hours, 3,538 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Switch
- Part number: 53ND783041
- Condition: Faulty
- Location: Thrust Reverser
- Part time: 4,533 hours, 3,582 cycles
- Component: Thrust Reverser, 03ND78002
- Component part number: 99125462
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ZESA20140805001

## Discrepancy

DURING FLIGHT AT ALTITUDE THE RT THRUST REVERSER UNLOCK LAMP CAME ON WITH THE MASTER WARNING, THE PILOTS FOLLOWED THEIR CHECKLIST & WENT TO EMER STOW, THE UNLOCK LIGHT STAYED ON, THE PILOTS DIVERTED & LANDED WITHOUT INCIDENT.  TROUBLESHOOTING WAS PERFORMED & FOUND TO BE THE THE RT THRUST REVERSER STOW SWITCH PN 53ND78304-1, THE SWITCH WAS REPLACED.

---
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.