# SDR UPS04241874

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2004
- Submitted: February 13, 2004
- Operation: Air carrier
- Aircraft: [N942UP](https://openairdocs.org/aircraft/N942UP), registered now
- Make and model: Boeing 727-22C
- Registry model: [Boeing 727-22C](https://openairdocs.org/model/boeing-727-22c) (OpenAirDocs)
- Aircraft serial: 19101
- Aircraft time: 50,850 hours, 39,757 cycles
- System (JASC): [2621 · Fire Bottle, Fixed](https://openairdocs.org/jasc/2621)
- Part: Solenoid Valve
- Condition: Sticking
- Location: Nr 1 Eng Exting
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS04241874

## Discrepancy

INSPECTION TYPE: C,  ENGINE NR 1 FIRE EXTINGUISHING SOLENOID STICKS DURING OPERATION.  ENGINE NR 1 FIRE SOLENOID VALVE REPLACED IAW MM 26-21-21.  TEST AND FOUND SATISFACTORY IAW MM 21-21-00.

---
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.