Serious incident Beechcraft B200 Super King Air N1851S,
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ASN Wikibase Occurrence # 385106
 
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Date:Friday 29 January 1982
Time:10:00 LT
Type:Silhouette image of generic BE20 model; specific model in this crash may look slightly different    
Beechcraft B200 Super King Air
Owner/operator:Herbert Const. Co.
Registration: N1851S
MSN: BB 962
Total airframe hrs:113 hours
Engine model:P & W PT6-42
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: None
Category:Serious incident
Location:Atlanta, GA -   United States of America
Phase: En route
Nature:Executive
Departure airport:Birmingham, AL
Destination airport:Greensboro, NC
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
WHILE AT CRUISE WITH RECOMMENDED POWER SETTINGS, THE LEFT ENGINE OIL PRESSURE AND TORQUE INDICATIONS BEGAN FLUCTUATING AND DROPPING. AS THE POWER LEVER WAS RETARDED A POPPING SOUND WAS HEARD AND THE ENGINE WAS SHUT DOWN. A PRECAUTIONARY LANDING WAS MADE IN ATLANTA. ENGINE DISASSEMBLY DISCLOSED A FAILURE OF THE NO. 1 BEARING. BLADE TIP FEATHERING WAS NOTED ON THE FIRST AND SECOND STAGE COMPRESSOR BLADE TIPS, AS WELL AS ON THE IMPELLER STAGE. THE OIL NOZZLE WAS UNOBSTRUCTED. PRATT AND WHITNEY HAD OBTAINED A NEW VENDOR FOR THE BEARING, WHICH HAD 113 HOURS IN SERVICE AT THE TIME OF THE FAILURE.

Probable Cause:

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: ATL82IA042
Status: Investigation completed
Duration: 1 year
Download report: Final report

Sources:

NTSB ATL82IA042

Revision history:

Date/timeContributorUpdates
04-Apr-2024 05:28 ASN Update Bot Added

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