# SDR ALG2005F00025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2005
- Submitted: April 29, 2005
- Operation: Air carrier
- Aircraft: [N587AL](https://openairdocs.org/aircraft/N587AL), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53248
- Engine: Allsn 250C47B
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hose
- Condition: Leaking
- Location: Hyd System
- Stage of operation: CR
- 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/ALG2005F00025

## Discrepancy

AT CRUISE FLIGHT AT 2750 FT, HEADING NORTH NORTHEAST, HYDRAULIC CAUTION LIGHT ILLUMINATED AND CONTROLS BECAME STIFF.  MAINTENANCE FOUND THE CASE DRAIN LINE FLEX HOSE AT HYDRAULIC PUMP WAS TIGHT BUT LEAKING OIL, REMOVED AND REPLACED HYDRAULIC PUMP FOR INTERAL LEAKING.  (K)

---
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.