# SDR 96ZZZX1462

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N751MA](https://openairdocs.org/aircraft/N751MA), registered now
- Make and model: Boeing 707323C
- Aircraft serial: 19582
- System (JASC): [2915 · Hydraulic Pressure Relief Valve, Main](https://openairdocs.org/jasc/2915)
- Part: Hyd Relief Valve
- Part number: 1032261
- Condition: Cracked
- Location: Lt Mlg Ww
- Stage of operation: DE
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX1462

## Discrepancy

CCR402 - SBEG/KMIA - LOST UTILITY HYDRAULIC SYSTEM AT 16:52.  UNABLE TO LOWER DOWN NOSE GEAR BY HAND CRANK AS WELL AS USE OF THE JOHNSON BAR.  FOUND UTILITY SYSTEM RELIEF VALVE HOUSING CRACKED.  REPLACED VALVE, SERVICED HYDRAULIC SYSTEM AND OPERATIONAL CHECKED SYSTEM.  OK PER MM 29-00-00.  AFTER AIRCRAFT WAS POSITIONED WITH A CRANE, PROCEEDED TO EXTEND NOSE GEAR PER THE EMERGENCY PROCEDURES, WHICH OPERATED NORMALLY.  AFTER REPOSITIONING AIRCRAFT AT THE HANGAR, JACKED ACFT AND OPERATED NOSE GEAR BOTH HYDRAULICALLY AND MANUALLY THROUGH THE EMERGENCY PROCEDURES (WITH THE GUIDANCE OF NTSB) AND FOUND ALL SYSTEMS TO OPERATE NORMALLY.

---
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.