Aviation Accident Summaries

Aviation Accident Summary MIA87IA141

OXFORD, MS, USA

Aircraft #1

N222HX

BELL 222U

Analysis

THE PILOT EXECUTED A PRECAUTIONARY LANDING AFTER HEARING A LOUD BANG AND EXPERIENCING A LOSS OF THE NUMBER 1 ENGINE. POST ACCIDENT EXAMINATION REVEALED THAT THE POWER TURBINE WHEEL BLADES HAD FAILED, AND THE WHEEL PARTS LOGJAMMED AND PENETRATED THE ENGINE CASE. THE BLADE FRACTURES WERE HIGH CYCLE TRANSGRANULAR FAILURES EMINATING FROM THE TRAILING EDGE OF EACH BLADE ROOT. A REVIEW OF FAA SDR RECORDS REVEALED 87 SIMILAR FAILURES. SIX EMERGENCY AIRWORTHINESS DIRECTIVES WERE SUBSEQUENTLY ISSUED.

 

Source: NTSB Aviation Accident Database

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