Accident Beechcraft 58P Baron N132Z,
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ASN Wikibase Occurrence # 297696
 
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Date:Wednesday 2 January 2002
Time:10:45 LT
Type:Silhouette image of generic B58T model; specific model in this crash may look slightly different    
Beechcraft 58P Baron
Owner/operator:US Department Of Agriculture
Registration: N132Z
MSN: TJ-284
Year of manufacture:1980
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Category:Accident
Location:Boise Airport, Boise, ID -   United States of America
Phase: Unknown
Nature:Test
Departure airport:Boise Airport, ID (BOI/KBOI)
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
Shortly after takeoff for an after maintenance test flight, the pilot noted a fire in the left engine. The pilot reduced power and landed the aircraft on the remaining runway without further incident. The engine and systems were shut down prior to the pilot and passenger evacuating the aircraft. Fire personnel responded and applied a small amount of foam on the engine, which was at the time, only smoking. Inspection of the engine revealed that the fire was contained to the accessory section of the engine. Heat distress was found to the outboard nacelle web assembly and the top wing skin under the nacelle was warped. Further inspection found that an electrical arc in the alternator wiring due to chafing against a pneumatic tube was responsible for the ignition of the fire. Accumulated fuel vapor from a fuel cell leak that was an on-going maintenance discrepancy for approximately three weeks preceding the accident, and eventually fixed, was most probable the source of the fuel.

Probable Cause: Improper clearance between an alternator wire and a pneumatic line and fuel fumes. The alternator wire chafe and arcing were factors.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: 
Status: Investigation completed
Duration: 10 months
Download report: Final report

Sources:

NTSB SEA02FA023

Location

Revision history:

Date/timeContributorUpdates
15-Oct-2022 07:21 ASN Update Bot Added
16-Sep-2023 12:11 Ron Averes Updated

Corrections or additions? ... Edit this accident description

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