ASN Wikibase Occurrence # 34993
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| Date: | Wednesday 15 June 1994 |
| Time: | 09:05 LT |
| Type: |  Bell 47G-2 |
| Owner/operator: | Aircraft Services, Inc. |
| Registration: | N4992G |
| MSN: | 2453 |
| Total airframe hrs: | 8198 hours |
| Engine model: | Lycoming VO-435-A1F |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Baldwin, IL -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Carbondale, IL (KMDH) |
| Chesterfield, MO (SUS | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOTS WERE EN ROUTE TO THE ST. LOUIS AREA TO RECEIVE DUAL INSTRUCTION IN THE HELICOPTER. WITNESSES STATED THE HELICOPTER WAS OPERATING AT LOW ALTITUDE (ESTIMATED 200 FEET ABOVE THE GROUND) WHEN ENGINE SPUTTERED, THEN QUIT COMPLETELY. THE HELICOPTER DESCENDED INTO A WOODED AREA. POSTACCIDENT INVESTIGATION REVEALED THE FUEL FILTER BOWL WAS LOOSE, AND THERE WAS NO SAFETY WIRE ON THE FUEL FILTER LOCK SCREW. THERE WAS NO EVIDENCE OF USEABLE FUEL IN THE HELICOPTER OR AT THE ACCIDENT SITE. LOGBOOK RECORDS INDICATE THE MOST RECENT MAINTENANCE WAS PERFORMED TWO WEEKS PRIOR TO THE ACCIDENT, THE MOST RECENT ANNUAL INSPECTION OCCURRED 8 MONTHS PRIOR TO THE ACCIDENT. THE HELICOPTER HAD OPERATED ABOUT 10 HOURS AND 84 HOURS, RESPECTIVELY, SINCE THOSE MAINTENANCE ACTIONS.
Probable Cause: The inadequate maintenance (inspection of aircraft) by maintenance personnel, which resulted in a loss of engine power due to fuel exhaustion. Related factors are the unsafetied fuel filter, and low altitude at which the helicopter operated.
Accident investigation:
 |
|
Sources:
NTSB CHI94FA202
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 10-Apr-2024 06:44 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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