# SDR TWAA9819303

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N54352
- Make and model: Boeing 727231
- Aircraft serial: 21984
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Valve
- Part number: 1U1085
- Condition: Cracked
- Location: Landing Gear
- Stage of operation: CL
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9819303

## Discrepancy

AFTER TAKEOFF, UPON GEAR RETRACTION, THE A HYDRAULIC SYSTEM PRESSURE AND QUANTITY DROPPED.  RETURNED TO STL.  REPLACED THE RT LANDING GEAR HYDRAULIC SEQUENCE VALVE.  CHECK-C 3-19-98 MCI.

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