Incident · 1991-07-16

NTSB case ATL91IA134 · de Havilland DHC-8-102 · Part 121

What the record says

Event date: 1991-07-16
Event type: Incident
Highest injury level: No injuries
Aircraft: de Havilland DHC-8-102 (N922HA)
Operating rule: Part 121
Operator: HENSON AIRLINES Operator named in NTSB report
Operated by (per NTSB report): HENSON AIRLINES

Probable cause

THE INADEQUATE INSPECTION PROCEDURES WHICH ALLOWED THE LOSS OF TORQUE ON THE TOP RETRACTION FITTING ATTACHMENT BOLT WHICH SUBSEQUENTLY FAILED IN FATIGUE. FACTORS WERE THE LOSS OF HYDRAULIC FLUID THROUGH A SEVERED LINE, AND THE CORROSION OF A HYDRAULIC QUANTITY LIMITING VALVE.

Source: NTSB case ATL91IA134

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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