# SDR UPS07650508

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2007
- Submitted: August 29, 2007
- Operation: Air carrier
- Aircraft: [N327UP](https://openairdocs.org/aircraft/N327UP), registered now
- Make and model: Boeing 767-34AF
- Registry model: [Boeing 767-34AF](https://openairdocs.org/model/boeing-767-34af) (OpenAirDocs)
- Aircraft serial: 27753
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Circuit Card
- Condition: Faulty
- Location: Bleed Air Sys
- Stage of operation: UK
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS07650508

## Discrepancy

INSPECTION TYPE:ETOP L DUCT LEAK LIGHT ILLUMINATED.  EICAS MESSAGE:  L/BLEED DUCT LEAK DISPLAYED.  LIGHT EXITING APPROXIMATELY 5 MINUTES AFTER MESSAGE BLEED AIR SUPPLY & ISOLATION VALVES CLOSED.  ACCOMPLISHED FIM PROC 26-18-00, FIGURE 104, NO FAULTS FOUND.  MEASURED DUCT LEAK DETECTOR CENTER CONDUCTOR TO GROUND RESISTANCE = 3.1 MEGOHM.  REPLACED DUCT LEAK CARD M691 IAW 26-10-01-4.  RAN ENGINE, NO DUCT LEAK INDICATION OCCURRED.

---
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.