Accident Beechcraft F-33A N1565A,
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ASN Wikibase Occurrence # 299389
 
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Date:Tuesday 11 January 2000
Time:07:25 LT
Type:Silhouette image of generic BE33 model; specific model in this crash may look slightly different    
Beechcraft F-33A
Owner/operator:Airline Training Center Arizon
Registration: N1565A
MSN: CE-1331
Year of manufacture:1989
Fatalities:Fatalities: 0 / Occupants: 3
Aircraft damage: Substantial
Category:Accident
Location:MOBILE, Arizona -   United States of America
Phase: Unknown
Nature:Training
Departure airport:, AZ (1AZ0)
Destination airport:GOODYEAR , AZ (KGYR)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
During climb out the engine began shaking, rattling, and losing power. The flight instructor took the controls and performed an emergency off-airport landing. While on rollout the aircraft sustained substantial damage to the leading edges and lower surfaces of both wings. The engine had been previously inspected IAW TCM 99-3, which required the removal of the No. 1 and 3 cylinders. Upon reassembly of the cylinders, it was necessary to reinstall three snap rings on the crankshaft counterweights at the No. 2 and 5 cheeks. An inspection of he No. 5 cheek revealed that these three snap rings were not fully seated. The signatures on the crankshaft and counterweight were consistent with a counterweight striking the crankshaft. This can only happen if the counterweight pin is not in place. A revision to TCM mandatory service bulletin 99-3C, published on July 27, 1999, now requires that the gap between the snap ring ears be measured to insure that they are properly seated during reassembly.

Probable Cause: the manufacturer representative's improper reinstallation of the crankshaft counterweight snap rings which subsequently separated, allowing the crankshaft counterweight to contact the crankshaft resulting in a total power loss of engine power.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: 
Status: Investigation completed
Duration: 1 year and 11 months
Download report: Final report

Sources:

NTSB LAX00LA074

History of this aircraft

Other occurrences involving this aircraft
5 June 2010 N1565A Airline Transport Training Center Arizona Inc. 0 Marana, Arizona sub

Revision history:

Date/timeContributorUpdates
16-Oct-2022 06:04 ASN Update Bot Added

Corrections or additions? ... Edit this accident description

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