Accident · 1990-11-15

NTSB case LAX91LA034 · AEROSPATIALE AS-350-B · Part 91

What the record says

Event date: 1990-11-15
Event type: Accident
Highest injury level: Minor injury
Aircraft: AEROSPATIALE AS-350-B (N350CB)
Operating rule: Part 91
Operator: Hawaii Helicopters, LLC Operator named in NTSB report
Operated by (per NTSB report): HAWAII HELICOPTERS, INC.

Probable cause

THE PILOT'S INADVERTENT DEACTIVATION OF THE HELICOPTER'S HYDRAULIC BOOST SYSTEM AND HIS IMPROPER REMEDIAL ACTION THEREAFTER TO THE INFLIGHT SITUATIONS WHICH HE CREATED. A CONTRIBUTING FACTOR WAS RELATED TO THE MANUFACTURER'S INADEQUATE LOCATION AND DESIGN (SHAPE) OF THE HYDRAULIC TEST SWITCH.

Source: NTSB case LAX91LA034

Flight crew

Flight-crew details for this event aren't in the NTSB database extract we hold (its coverage starts with 2008 events) — a gap in our data, not an absence of crew.

Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.

All incidents →