ASN Wikibase Occurrence # 38555
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| Date: | Friday 17 June 1988 |
| Time: | 18:45 |
| Type: |  Bell 206L-1 LongRanger II |
| Owner/operator: | Fleet Helicopter Services |
| Registration: | N114FH |
| MSN: | 45508 |
| Total airframe hrs: | 1826 hours |
| Engine model: | ALLISON 250-C28B |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Springtown, PA -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Manville, NJ (A7N) |
| Coopersburg, PA (63N) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE IN CRUISE FLIGHT, GROUND WITNESSES OBSERVED THE HELICOPTER MAKE TWO VIOLENT ROLL MANEUVERS FOLLOWED BY AN IN-FLIGHT BREAKUP. AIRCRAFT WRECKAGE WAS SPREAD OVER AN AREA OF APPROXIMATELY 10 ACRES. EXAMINATION OF THE WRECKAGE REVEALED THAT THE COLLECTIVE IDLER LINK AND RETAINING PIN ASSEMBLY WERE MISSING AND THE LOWER ATTACHING STUD OF THE IDLER LINK SHOWED EVIDENCE OF FAILURE. THE STUD WAS BENT IN THE DIRECTION OPPOSITE TO THE DIRECTION OF ROTATION AND SHEARED NUT THREADS AND COTTER PIN REMAINS WERE FOUND IN THE STUD THREADS AND COTTER PIN HOLE, RESPECTIVELY. THE H-SHAPED IDLER LEVER THAT CONNECTS THE UPPER END OF THE IDLER LINK TO THE SWASHPLATE DRIVE COLLAR WAS FOUND ATTACHED TO THE COLLAR AND SHOWED NO EVIDENCE OF DISTRESS. IT COULD NOT BE DETERMINED WHY THE RETAINING PIN CONNECTING THE COLLECTIVE IDLER LINK TO THE IDLER LEVER SEPARATED. CAUSE:
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X26056
History of this aircraft
Other occurrences involving this aircraft
| 29 March 1988 | N114FH | Private | 0 | Allentown, PA | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
Corrections or additions? ... Edit this accident description
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