Aviation Accident Summaries

Aviation Accident Summary LAX92LA365

POINT REYES STN, CA, USA

Aircraft #1

N24CE

Christen Industries EAGLE II

Analysis

A CHRISTEN EAGLE II LOST CONTROL DURING ACROBATIC MANEUVERS, COLLIDED WITH COASTAL WATERS AND WAS NEVER RECOVERED. THE AIRPLANE WAS OBSERVED IN A STEEP CLIMB, DID A WING OVER, AND THEN ENTERED A SPIN. AFTER 4 TO 5 ROTATIONS IN THE SPIN THE AIRPLANE STARTED TO PULL OUT. THE AIRPLANE WAS THEN OBSERVED ROTATING AS IF IN A SPIN AND SIMULTANEOUSLY FLIPPING NOSE OVER UNTIL ITS TAIL STRUCK THE WATER. THE PILOT'S TOTAL DOCUMENTED AERONAUTICAL EXPERIENCE IN THE ACCIDENT AIRPLANE MAKE AND MODEL WAS 14 FLIGHT HOURS. INVESTIGATORS DETERMINED THAT THE AIRPLANE'S WEIGHT EXCEEDED THE MAXIMUM NORMAL AND AEROBATIC ALLOWABLE GROSS WEIGHT. THE CENTER OF GRAVITY (CG) EXCEEDED THE AFT LIMIT OF THE AIRPLANE'S AEROBATIC ALLOWABLE CG. THE AIRPLANE FLIGHT MANUAL PUBLISHES A WARNING WHICH STATES IN PART; 'PILOTS MUST TAKE WEIGHT AND BALANCE RESPONSIBILITIES SERIOUSLY. ALL AIRCRAFT MUST BE LOADED SO THAT THE AIRCRAFT CG WILL REMAIN WITHIN SAFE LIMITS AT ALL TIMES. ALL SPIN RECOVERY PROCEDURES DEPEND ON HAVING THE CG REMAIN WITHIN DESIGN LIMITS.'

Probable Cause and Findings

IMPROPER PREFLIGHT PLANNING BY THE PILOT IN COMMAND BY EXCEEDING THE AIRPLANE'S MAXIMUM ACROBATIC GROSS WEIGHT AND EXCEEDING THE AFT AEROBATIC CENTER OF GRAVITY LIMIT. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S DECISION TO PERFORM ACROBATIC MANEUVERS WHICH RESULTED IN A INADVERTENT STALL FROM WHICH RECOVERY WAS NOT POSSIBLE.

 

Source: NTSB Aviation Accident Database

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