# SDR ASAA2019012227878

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 22, 2019
- Submitted: January 23, 2019
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 38,309 hours, 11,398 cycles
- System (JASC): [7600 · Engine Controls](https://openairdocs.org/jasc/7600)
- Part: Brake Assy
- Part number: 254A12906
- Condition: Intermittent
- Location: Start Brake
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019012227878

## Discrepancy

FOLLOW-UP TO HISTORY OF NR 2 ENGINE SLOW TO SHUTDOWN. GROUNDED - YES. REMOVED, REPLACED, AND TESTED M1825 NR 2 ENGINE START BRAKE ASSEMBLY PER AMM 76-11-10. OPS NORMAL. PERFORMED ENGINE SPAR VALVE ELECTRICAL CONTROL AND INDICATION TEST FOR NR 2 ENGINE PER AMM 28-22-00-710-801, EEC DISCRETES TEST PER AMM 73-21-00-700-809-F00, EEC TEST PER AMM 73-21-00-700-804-F00, AND IGNITION SYSTEM AUDIBLE TEST PER AMM 74-00-00-750-801 - ALL TESTS PASS. PERFORMED POWERPLANT TEST 13 - ENGINE RUN - EEC BITE CHECK PER AMM 71-00-00-700-808-F00 - ENGINE STARTS AND STOPS NORMALLY WITH NO EEC FAULTS.

---
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.