# SDR UPS99431141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N522UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21936
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Bleed Valve
- Condition: Failed
- Location: Nr 4 Engine
- Stage of operation: TO
- Nature of condition: N
- Precautionary procedure: E, C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS99431141

## Discrepancy

INSPECTION TYPE:N/A, AT 1000 FEET ENGINE NR 4 SHOWED ENGINE FIRE.  SHUT ENGINE DOWN PER UPS OPERATING PROCEDURES.  REMOVED AND REPLACED NR 4 ENGINE HIGH STAGE BLEED VALVE AND CONTROLLER PER MM 36-11-17 AND 36-11-06, OPS CHECKS NORMAL PER MM 71-00-00.  INSPECTED TIRES AND BRAKES AFTER COOL DOWN, CKS NORMAL.

---
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.