# SDR ASAA2023040142704

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2023
- Submitted: April 4, 2023
- Operation: Air carrier
- Aircraft: [N563AS](https://openairdocs.org/aircraft/N563AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35180
- Aircraft time: 59,054 hours, 17,383 cycles
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Hmu
- Part number: 442369
- Part serial: BECW5041
- Condition: Faulty
- Location: #1 Engine
- Part time: 816 hours, 243 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023040142704

## Discrepancy

LEFT ENGINE CONTROL LIGHT ILLUMINATED ON TAXI CHECK THIS HAPPENED AT 58 MINUTES AFTER ENGINE START ENGINE START 2335Z, ENGINE CUTOFF 00592. GROUNDED - YES. REPLACED #1 ENG HMU REF ASA T/C'S N8473000 & N8473001.

---
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.