Accident Hughes 369D N88SE,
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ASN Wikibase Occurrence # 364315
 
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Date:Wednesday 23 October 1991
Time:11:00 LT
Type:Silhouette image of generic H500 model; specific model in this crash may look slightly different    
Hughes 369D
Owner/operator:Miami Valley Services
Registration: N88SE
MSN: 775D
Total airframe hrs:1236 hours
Engine model:Allison 250-C20B
Fatalities:Fatalities: 0 / Occupants: 3
Aircraft damage: Substantial
Category:Accident
Location:Beech Grove, IN -   United States of America
Phase: Taxi
Nature:Executive
Departure airport:
Destination airport:Richmond, IN (NONE)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
THE ACCIDENT HELICOPTER EXPERIENCED A LOSS OF CYCLIC PITCH CONTROL DURING LIFTOFF TO A HOVER AT THE START OF A BUSINESS FLIGHT. THE HELICOPTER PITCHED UP, STRIKING THE TAIL ROTOR INTO THE GROUND AND THEN ROLLED ONTO ITS RIGHT SIDE. THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE. THE COMMERCIAL PILOT AND TWO PASSENGERS WERE NOT INJURED. ON SCENE INSPECTION OF THE WRECKAGE SHOWED A FLIGHT CONTROL LINKAGE DISCONNECT. THE MISSING BOLT WAS FOUND ON THE GROUND NEXT TO THE HELICOPTER. THE OTHER CONNECTING HARDWARE WAS NOT FOUND. THE PILOT STATED THAT HE DID NOT NOTICE THE MISSING NUT DURING HIS PREFLIGHT INSPECTION.

Probable Cause: IMPROPER INSTALLATION OF THE FLIGHT CONTROL LINKAGE DURING MAINTENANCE. COMPLACENCY AND INADEQUATE INSPECTION OF THE HELICOPTER BY MAINTENANCE PERSONNEL AND THE PILOT ARE FACTORS IN THE ACCIDENT.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: CHI92LA017
Status: Investigation completed
Duration: 1 year 1 month
Download report: Final report

Sources:

NTSB CHI92LA017

Location

Revision history:

Date/timeContributorUpdates
19-Mar-2024 13:50 ASN Update Bot Added

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