# SDR ASAA2018111426854

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2018
- Submitted: November 14, 2018
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 42,323 hours, 12,350 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Switch
- Part number: 254A115011
- Part serial: AC00587
- Condition: Intermittent
- Location: Autothrottle
- Part time: 6,941 hours, 2,030 cycles
- 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/ASAA2018111426854

## Discrepancy

#1 ENGINE THRUST REVERSER HAS INTERMITTENT HISTORY OF LIGHT ON AND NOT DEPLOYING AND SETTING NO EAU FAULTS. GROUNDED - YES. PERFORMED B737-800 FIM 78-32 TASK 814. NO FAULTS FOUND. REMOVED AND REPLACED THE AUTOTHROTTLE SWITCHPACK IAW B737-800 AMM 76-11-07. GROUND VERIFICATION TEST CHECKS GOOD. NO FAULTS ON EAU.

---
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.