ASN Wikibase Occurrence # 42636
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| Date: | Thursday 4 April 1991 |
| Time: | 13:10 LT |
| Type: |  Bell 412SP |
| Owner/operator: | Sun Company Inc. |
| Registration: | N78S |
| MSN: | 61-0844 |
| Year of manufacture: | 1985 |
| Total airframe hrs: | 2739 hours |
| Engine model: | Lycoming IO-540-S1A5 |
| Fatalities: | Fatalities: 7 / Occupants: 10 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Merion, PA -
 United States of America
|
| Phase: | Approach |
| Nature: | Executive |
| Departure airport: | Williamsport, PA (IPT |
| Philadelphia, PA (PHL | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Probable Cause: THE POOR JUDGEMENT BY THE CAPTAIN OF THE AIRPLANE TO PERMIT THE IN-FLIGHT INSPECTION AFTER HE HAD DETERMINED TO THE BEST OF HIS ABILITY THAT THE NOSE LANDING GEAR WAS FULLY EXTENDED, THE POOR JUDGMENT OF THE CAPTAIN OF THE HELICOPTER TO CONDUCT THE INSPECTION, AND THE FAILURE OF THE FLIGHTCREW OF THE HELICOPTER TO MAINTAIN SAFE SEPARATION.
Accident investigation:
 |
|
Sources:
NTSB DCA91MA031
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 05-Feb-2013 07:41 | TB | Updated [Source, Narrative] |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Apr-2024 07:21 | ASN Update Bot | Updated [Time, Cn, Operator, Total fatalities, Total occupants, Other fatalities, Phase, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
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