# SDR ASAA1057535

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2010
- Submitted: March 16, 2010
- Operation: Air carrier
- Aircraft: [N570AS](https://openairdocs.org/aircraft/N570AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35185
- Aircraft time: 11,841 hours, 3,433 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Unknown
- Condition: Malfunctioned
- Location: Fuel System
- Stage of operation: NR
- 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/ASAA1057535

## Discrepancy

WHEN NR 1 AFT FUEL PUMP SWITCH IS POSITIONED TO OFF THE ASSOCIATED LOW PRESSURE LIGHT DOES NOT ILLUMINATE.  LOW PRESSURE LIGHT TESTS GOOD.  CHECKED C/B NR 1 AFT FUEL PUMP CORE SOCKET PERFORMED LIGHT TEST AND PUSH TO TEST, PERFORMED SUCCESSFUL GROUND VERIFICATION OF NR 1 AFT BOOST PUMP IAW AMM 28 22 00 730.

---
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.