# SDR CA010404010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 22, 2001
- Submitted: April 12, 2001
- Operation: Air carrier
- Make and model: Boeing 737275
- Aircraft time: 46,584 hours, 44,191 cycles
- Engine: Pwa JT8D9A
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Control Unit
- Part number: 654476112
- Condition: Leaking
- Location: Aileron
- Part time: 48,644 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA010404010

## Discrepancy

(CAN) DURING FLIGHT A SYSTEM HYDRAULIC SYSTEM QUANTITY BEGAN TO DROP, AT A RATE OF 1 GALLON PER HOUR. DUE TO POOR WEATHER ELECTED TO DIVERT. GEAR EXTENDED NORMALLY AND QUANTITY REMAINED STEADY. FLIGHT LANDED WITHOUT INCIDENT. FOUND A SYSTEM AILERON POWER CONTROL UNIT LEAKING. REPLACED PCU AS PER WORK CARD 51143.

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