Accident Aune Glastar GS-1 N699S,
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ASN Wikibase Occurrence # 297055
 
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Date:Saturday 29 June 2002
Time:13:53 LT
Type:Silhouette image of generic GLST model; specific model in this crash may look slightly different    
Aune Glastar GS-1
Owner/operator:
Registration: N699S
MSN: 5446
Total airframe hrs:130 hours
Engine model:Lycoming O-360
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Category:Accident
Location:South St Paul, Minnesota -   United States of America
Phase: Unknown
Nature:Private
Departure airport:South St Paul Municipal Richard E Fleming field, MN (KSGS)
Destination airport:Faribault Municipal Airport, MN (FBL/KFBL)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
After takeoff, the airplane experienced a gradual loss of engine power and was substantially damaged during the resulting forced landing. The climb rate decayed until the pilot was unable to maintain a positive rate of climb. The airplane impacted a roof top antenna and landed in a residential area approximately one mile south of the airport. Temperature and dew point at the departure airport were reported as 32 degrees Celsius and 19 degrees Celsius, respectively. The post-accident engine examination revealed black, sooty deposits on all spark plugs and a black, sooty residue in the exhaust system. No other anomolies were noted. The pilot reported checking carburetor heat on run-up, however he did not apply carburetor heat prior to takeoff. In addition, the pilot reported that carburetor heat was not applied in response to the engine power loss. Based on statements from the pilot, two to four minutes elapsed between the time the run-up was completed and the takeoff was initiated. Other pilots operating on the day of the accident reported experiencing problems with carburetor ice. These pilots noted that carburetor heat was necessary during takeoff and climb. Data published by Transport Canada indicated a probability of light carburetor icing in these conditions.

Probable Cause: The pilot's failure to utilize carburetor heat. Factors included ambient conditions for the formation of carburetor ice, and the unsuitable terrain for the forced landing.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: CHI02LA180
Status: Investigation completed
Duration: 9 months
Download report: Final report

Sources:

NTSB CHI02LA180

Revision history:

Date/timeContributorUpdates
14-Oct-2022 13:57 ASN Update Bot Added

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