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Flight crew flying an SA227AT observed fluctuating hydraulic gauge and noises. Landed without incident.
| Attributes | |
| ACN | 1643567 |
| Time | |
| Date | 201905 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Metro Undifferentiated or Other Model |
| Flight Phase | Initial Approach |
| Component | |
| Aircraft Component | Hydraulic System Lines Connectors Fittings |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Commercial |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Inflight Event / Encounter Other / Unknown |
Narrative:
On approach the hydraulic gauge began fluctuating randomly with simultaneous map lights and noises in the jumpseat area. Immediately we slowed; lowered gear; and flaps in preparation for landing. Tower was notified of our status and notified of assistance needed. The left hydraulic light remained illuminated but the right light went on and off with associated fluctuations in its gauge throughout the approach; landing; and taxi to the ramp. At 500 feet full flaps were deployed and successfully set. Identification: noises; gauges; and annunciation lights made us aware of the event when it began. Cause: hydraulic leak from lines being chaffed due to insufficient vibration isolation. Response: slow down; lower gear; extend flaps; QRH (quick reference handbook); notify tower. Suggestions: maintenance action that has been learned from past experiences of the same situation and preventative actions taken to eliminate recurrence.
Original NASA ASRS Text
Title: Flight crew flying an SA227AT observed fluctuating hydraulic gauge and noises. Landed without incident.
Narrative: On approach the hydraulic gauge began fluctuating randomly with simultaneous MAP lights and noises in the jumpseat area. Immediately we slowed; lowered gear; and flaps in preparation for landing. Tower was notified of our status and notified of assistance needed. The left hydraulic light remained illuminated but the right light went on and off with associated fluctuations in its gauge throughout the approach; landing; and taxi to the ramp. At 500 feet full flaps were deployed and successfully set. Identification: noises; gauges; and annunciation lights made us aware of the event when it began. Cause: hydraulic leak from lines being chaffed due to insufficient vibration isolation. Response: slow down; lower gear; extend flaps; QRH (Quick Reference Handbook); notify Tower. Suggestions: maintenance action that has been learned from past experiences of the same situation and preventative actions taken to eliminate recurrence.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.