Accident Cessna 310L N157JW,
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ASN Wikibase Occurrence # 36392
 
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Date:Sunday 5 February 1995
Time:12:01 LT
Type:Silhouette image of generic C310 model; specific model in this crash may look slightly different    
Cessna 310L
Owner/operator:James M. Wright
Registration: N157JW
MSN: 310L-0146
Year of manufacture:1967
Engine model:CONTINENTAL IO-470-V
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Destroyed
Category:Accident
Location:Valparaiso, IN -   United States of America
Phase: Unknown
Nature:Private
Departure airport:Pontiac, MI (KPTK)
Destination airport:Chicago, IL (KMDW)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
IMMEDIATELY FOLLOWING A NEW FREQUENCY ASSIGNMENT, WHILE DESCENDING INTO A CLOUD LAYER WITH REPORTED MODERATE TURBULENCE AND MODERATE RIME ICING, THE PILOT REPORTED 'I HAVE A LITTLE VACUUM FAILURE. I'M GONNA CLIMB OUTTA HERE.' EXAMINATION OF THE WRECKAGE REVEALED NO EVIDENCE OF AN AIRFRAME OR ENGINE MALFUNCTION. BOTH VACUUM PUMPS OPERATED NORMALLY WHEN BENCH TESTED AND INSPECTION OF ALL VACUUM SYSTEM COMPONENTS REVEALED NO EVIDENCE OF PREIMPACT MALFUNCTION. THE DRUMS ON THE VACUUM DRIVEN VERTICAL AND HORIZONTAL GYROS, AND THE ELECTRIC TURN AND BANK GYRO, SHOWED SUBSTANTIAL ROTATIONAL SCORING.

Probable Cause: spatial disorientation of the pilot while descending into the clouds. Factors were the moderate turbulance and snow.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: CHI95FA082
Status: Investigation completed
Duration: 7 months
Download report: Final report

Sources:

NTSB CHI95FA082

Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:23 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
09-Apr-2024 16:43 ASN Update Bot Updated [Time, Cn, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Accident report]

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