# SDR 0200362290

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2002
- Submitted: February 19, 2002
- Operation: Air carrier
- Aircraft: [N290US](https://openairdocs.org/aircraft/N290US), registered now
- Make and model: Boeing 727251
- Aircraft serial: 21378
- Aircraft time: 61,134 hours, 40,418 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Clamp
- Condition: Broken
- Location: Hydraulic Sys
- Stage of operation: CL
- 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/0200362290

## Discrepancy

AFTER TAKEOFF, THE -A- SYSTEM HYDRAULIC QUANTITY WENT TO ZERO DURING FLAP RETRACTION.  CREW FOLLOWED COM PROCEDURE AND VERIFIED NO FLUID OR PRESSURE IN THE -A- SYSTEM.  FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT.  MAINTENANCE REPLACED BROKEN CLAMP ON MAIN HYDRAULIC SYSTEM FILTER.  MAINTENANCE FOLLOWED ALL FLUID LOSS MM PROCEDURES FOR MM 29-11-00, PG 1.  ALL LEAK AND OPERATIONAL CHECKS OK.

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