# SDR HALA0800548

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2008
- Submitted: April 28, 2008
- Operation: Air carrier
- Aircraft: [N597HA](https://openairdocs.org/aircraft/N597HA), registered now
- Make and model: Boeing 767332
- Aircraft serial: 23277
- Aircraft time: 62,724 hours, 29,715 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Module
- Condition: Malfunctioned
- Location: Hyd System
- Stage of operation: TX
- How discovered: V
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA0800548

## Discrepancy

ETOPS SIGNIFICANT SYSTEM, BOTH C1 AND C2 HYD PUMPS LOST PRESSURE DURING FLAP RETRACTION.  AS PART OF O/N INSPECTION NOW NEITHER PUMP PRODUCES MORE THAN 1700 PSI BY ITSELF AND NOT MORE THAN 2700 PSI COMBINED.  BEGAN REMOVAL OF ADP FILTER/PRESSURE MODULE TO CK PRESSURE RELIEF VLV, SYSTEM DEPRESURIZED.  REPLACED CTR SYSTEM RETURN FILTER MODULE AND COMPONENTS PER MM 29-11-16-404-034.  OPS CK GOOD, NO LEAKS FOUND.
	



---
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.