Accident Cessna 411A N49DD,
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ASN Wikibase Occurrence # 38059
 
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Date:Thursday 8 May 1986
Time:15:40
Type:Silhouette image of generic C411 model; specific model in this crash may look slightly different    
Cessna 411A
Owner/operator:private
Registration: N49DD
MSN: 411-0266
Total airframe hrs:4609 hours
Fatalities:Fatalities: 6 / Occupants: 6
Aircraft damage: Destroyed
Category:Accident
Location:Bossier City, LA -   United States of America
Phase: En route
Nature:Executive
Departure airport:Shreveport, LA (DTN)
Destination airport:Baton Rouge, LA (BTR)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
THE PILOT REPORTEDLY DID AN UNUSUAL AMOUNT OF ENGINE RUN-UP BEFORE PULLING ONTO THE RUNWAY. HE THEN PERFORMED ANOTHER RUN-UP BEFORE DEPARTING. THIS IS EVIDENCE THAT HE WAS AWARE OF A PROBLEM WITH HIS AIRCRAFT. THE ENGINE(S) WERE POPPING AND PUFFING BLACK SMOKE DURING THE GROUND RUN. YET, THE TAKEOFF WAS CONTINUED. THE POPPING AND SMOKE PUFFING CONTINUED AFTER LIFTOFF. A NOTICEABLE LOSS OF AIRSPEED OCCURRED DURING THE CLIMBOUT. THE AIRCRAFT STARTED THE THIRD ROLL (INTO THE BAD ENGINE) BEFORE FINALLY GOING INVERTED. THE AIRCRAFT'S ALLOWABLE GROSS WEIGHT WAS EXCEEDED BY AT LEAST 205 POUNDS AT TAKEOFF, HOWEVER, THE CENTER OF GRAVITY REMAINED WITHIN IT'S SPECIFIED LIMITS. INTERNAL EXAMINATION OF THE RIGHT ENGINE EXHIBITED EVIDENCE THAT IT HAD OPERATED AT SOMETIME ON A MIXTURE OF GASOLINE AND JET FUEL. CAUSE:

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X33549

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]

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