Accident · 1989-05-07

NTSB case FTW89FA093 · MBB BO-105S · Part 135

What the record says

Event date: 1989-05-07
Event type: Accident
Highest injury level: Fatal injury
Aircraft: MBB BO-105S (N2785B)
Operating rule: Part 135
Operator: AIR LOGISTICS Operator named in NTSB report
Operated by (per NTSB report): AIR LOGISTICS

Probable cause

THE PARTIAL ELECTRICAL FAILURE OF THE MICRO-SWITCH FOR THE OUTBOARD LATERAL GUIDE ASSEMBLY, AND THE INCORRECT GUARD INSTALLED ON THE HYDRAULIC TEST SWITCH, RESULTING IN A TOTAL HYDRAULIC FAILURE. FACTORS WERE: THE INCORRECT INSTALLATION OF THE GUARD BY AN UNKNOWN PERSON, THE FAILURE OF THE COMPANY TO COMPLY WITH THE SPECIFIED SERVICE BULLETIN.

Source: NTSB case FTW89FA093

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.

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