ASN Wikibase Occurrence # 150362
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| Date: | Thursday 25 October 2012 |
| Time: | 13:06 |
| Type: |  Beechcraft A36 Bonanza |
| Owner/operator: | Herman Hassinger Architects |
| Registration: | N4325W |
| MSN: | E-528 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 4130 hours |
| Engine model: | Continental IO-520 SERIES |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Near Interstate 93 in Hooksett, New Hampshire -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Nashua, NH (ASH) |
| Laconia, NH (LCI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane was on the second leg of a visual flight rules cross-country flight and was receiving flight following services from air traffic control (ATC). About 10 minutes after establishing radio and radar contact with ATC, the airplane's discrete transponder code was lost, and an air traffic controller made several unsuccessful attempts to contact the airplane. Postaccident review of radar data showed a primary target, correlated to be the accident airplane, as it tracked north toward the pilot's destination. About 7 minutes later, the target initiated a left turn south, paralleling its northerly course. The last several radar returns showed the target tracking southbound directly over an interstate highway. The last radar return was located about 2,500 feet north of where the airplane was found resting upright against an interstate guardrail. Postaccident examination of the airframe and engine revealed no evidence of any mechanical malfunctions or anomalies that would have precluded normal operation.
Review of the pilot's medical history revealed multiple medical conditions and a coronary artery bypass graft procedure for three-vessel coronary artery disease and insertion of a pacemaker for symptomatic bradycardia. The pilot provided the Federal Aviation Administration (FAA) extensive documentation regarding his conditions and the medications used to treat the conditions and was granted special-issuance medical certificates. His most recent medical certificate was issued 3 months before the accident. The pilot's autopsy report indicated that he died from an acute heart attack at some point during the accident flight.
The pilot-rated passenger held a pilot certificate, and, according to the pilot's logbook, had acted as a safety pilot on flights in the accident airplane during the previous year. However, she did not hold a current medical certificate, and no other evidence of recent flight experience could be found to suggest that she was capable of flying the accident airplane unassisted.
Probable Cause: The pilot's total incapacitation in flight due to an acute heart attack.
Accident investigation:
 |
|
Sources:
NTSB
History of this aircraft
Other occurrences involving this aircraft
| 6 July 1993 | N4325W | Equity Resources Inc. | 0 | Falmouth, MA | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Oct-2012 12:03 | gerard57 | Added |
| 25-Oct-2012 13:29 | Alpine Flight | Updated [Aircraft type, Registration, Cn, Operator] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 28-Nov-2017 13:44 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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