# SDR ASAA2021062335161

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 23, 2021
- Submitted: June 26, 2021
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35182
- Aircraft time: 53,477 hours, 15,797 cycles
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Autothrottle Sys
- Condition: Malfunctioned
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021062335161

## Discrepancy

AUTO THROTTLE WILL NOT ARM. FOUND CB POPPED AFTER CLIMB OUT. GROUNDED - YES. P18-1 E1 C/B FOUND OPEN (AUTOTHROTTLE DC1) VERIFIED NO DEFECTS IN PANEL P18-1 RESET C/B P18-1 E1 (AUTOTHROTTLE DC1) REF B737-800 AMM 20-60-01. PERFORMED AUTOTHROTTLE SYSTEM TEST REF AMM 2231-00-710*-802. NO DEFECTS FOUND. CKS GOOD. CHECKED DFCS CURRENT STAUTS. NO FAULTS REF AMM 22-11-00.

---
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.