# SDR DL72L011292

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2001
- Submitted: August 16, 2001
- Operation: Air carrier
- Aircraft: N503DA
- Make and model: Boeing 727232
- Aircraft serial: 21305
- Aircraft time: 76,248 hours, 51,516 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Valve
- Part number: 1U10851
- Part serial: 2771A
- Condition: Leaking
- Location: Rt Mlg Ww
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL72L011292

## Discrepancy

SYSTEM A HYDRAULICS FAILURE AFTER GEAR RETRACTION. PRESSURE  ZERO, FLUID ZERO. A SYSTEM PUMPS SHUT OFF IAW CHECKLIST APPROX 5 MIN. FOUND LOCK ASSY VALVE LEAKING IN RT MLG WW. REMOVED AND REPLACE R/H SIDE LOLOCK ASSY VALVE PER M/M JACKED A/C  AND CYCLED GEAR. OPS CK OK.

---
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.