|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1801 To 2400|
|Locale Reference||atc facility : zzz|
airport : xyz
|Altitude||msl bound lower : 0|
msl bound upper : 1000
|Controlling Facilities||tracon : zzz|
|Operator||common carrier : air taxi|
|Make Model Name||Helicopter|
|Flight Phase||cruise other|
|Route In Use||enroute : direct|
|Affiliation||company : air taxi|
|Function||flight crew : single pilot|
|Qualification||pilot : cfi|
pilot : commercial
|Experience||flight time last 90 days : 50|
flight time total : 2055
flight time type : 225
|Anomaly||aircraft equipment problem : critical|
|Independent Detector||aircraft equipment other aircraft equipment : unspecified|
|Resolutory Action||flight crew : overcame equipment problem|
|Air Traffic Incident||other|
Departure ZZZ general hospital, after dropping off a patient. In contact with ZZZ approach. About 20 mi northwest of xyz field low rotor RPM light and horn came on. Rotor tach went to zero and flight controls became heavy. Determined rotor tach gen and hydraulic pump lost drive. Went through hydraulic out procedure and secured aircraft. Elected to continue flight to destination hospital. Upon arrival deviated to nearby airport and performed uneventful hydraulic out landing. Manufacturer states to land aircraft as soon as practical meaning flight may be continued at pilot's discretion but passing an approved landing area was not recommended. Passed three airports to destination. However pilot determined the most practical and common sense thing to do was to continue to the destination rather than land at an airport where everything was closed and no assistance available. The aircraft was under control and stable. At night with hydraulics out it is recommended to land at an approved area. Shot approach to lit runway then sidestepped off to unlit unapproved grass area to side of runway. Pilot elected to do this because the airport is unattended at night and is uncontrolled. Pilot determined that to land and leave aircraft on runway or taxiway would be unsafe so aircraft was landed in grass area next to runway.
Original NASA ASRS Text
Title: ATX HELICOPTER LOST HYDRAULIC PRESSURE DURING A RETURN FLT FOLLOWING A PASSENGER DROP. PLT ELECTED TO CONTINUE TO DESTINATION PASSING THREE AVAILABLE ARPTS ENROUTE.
Narrative: DEP ZZZ GENERAL HOSPITAL, AFTER DROPPING OFF A PATIENT. IN CONTACT WITH ZZZ APCH. ABOUT 20 MI NW OF XYZ FIELD LOW ROTOR RPM LIGHT AND HORN CAME ON. ROTOR TACH WENT TO ZERO AND FLT CONTROLS BECAME HEAVY. DETERMINED ROTOR TACH GEN AND HYD PUMP LOST DRIVE. WENT THROUGH HYD OUT PROC AND SECURED ACFT. ELECTED TO CONTINUE FLT TO DEST HOSPITAL. UPON ARR DEVIATED TO NEARBY ARPT AND PERFORMED UNEVENTFUL HYD OUT LNDG. MANUFACTURER STATES TO LAND ACFT AS SOON AS PRACTICAL MEANING FLT MAY BE CONTINUED AT PLT'S DISCRETION BUT PASSING AN APPROVED LNDG AREA WAS NOT RECOMMENDED. PASSED THREE ARPTS TO DEST. HOWEVER PLT DETERMINED THE MOST PRACTICAL AND COMMON SENSE THING TO DO WAS TO CONTINUE TO THE DEST RATHER THAN LAND AT AN ARPT WHERE EVERYTHING WAS CLOSED AND NO ASSISTANCE AVAILABLE. THE ACFT WAS UNDER CONTROL AND STABLE. AT NIGHT WITH HYDS OUT IT IS RECOMMENDED TO LAND AT AN APPROVED AREA. SHOT APCH TO LIT RWY THEN SIDESTEPPED OFF TO UNLIT UNAPPROVED GRASS AREA TO SIDE OF RWY. PLT ELECTED TO DO THIS BECAUSE THE ARPT IS UNATTENDED AT NIGHT AND IS UNCTLED. PLT DETERMINED THAT TO LAND AND LEAVE ACFT ON RWY OR TXWY WOULD BE UNSAFE SO ACFT WAS LANDED IN GRASS AREA NEXT TO RWY.
Data retrieved from NASA's ASRS site as of August 2007 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.