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| Date: | Sunday 7 March 1993 |
| Time: | 16:15 LT |
| Type: |  Aero Commander 500 |
| Owner/operator: | Palm Beach Aviation |
| Registration: | N3836C |
| MSN: | 500-791 |
| Total airframe hrs: | 4861 hours |
| Engine model: | Lycoming O-540-A2B |
| Fatalities: | Fatalities: 0 / Occupants: 7 |
| Other fatalities: | 0 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Everglades City, FL -
 United States of America
|
| Phase: | Take off |
| Nature: | Unknown |
| Departure airport: | (X01) |
| W. Palm Beach, FL (KPBI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE AIRLINE TRANSPORT PILOT-IN-COMMAND ABORTED THE TAKEOFF WHEN A PROPELLER BLADE FROM THE RIGHT ENGINE SEPARATED FROM THE RIGHT PROPELLER SYSTEM. EXAMINATION OF THE PROPELLER HUB BY THE NTSB MATERIALS LABORATORY DIVISION REVEALED THE PROPELLER HUB ARM FAILED DUE TO PREEXISTING FATIGUE CRACKING IN THE BEARING RETENTION RADIUS, FROM POLISHING AND WEAR OF THE RADIUS FROM CONTACT WITH THE SPLIT RINGS.
Probable Cause: THE PREEXISTING FATIGUE CRACKING OF THE PROPELLER HUB ARM IN THE BEARING RETENTION RADIUS DUE TO POLISHING AND WEAR OF THE RADIUS FROM CONTACT WITH THE SPLIT RINGS, RESULTING IN A PROPELLER BLADE SEPARATING FROM THE PROPELLER HUB ON THE TAKEOFF GROUND RUN, AND SUBSEQUENT ABORTED TAKEOFF.
Accident investigation:
 |
|
Sources:
NTSB MIA93IA083
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Mar-2024 20:25 | ASN Update Bot | Added |
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