ASN Wikibase Occurrence # 358913
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| Date: | Sunday 4 June 1995 |
| Time: | 11:00 LT |
| Type: |  Beechcraft A35 |
| Owner/operator: | Private |
| Registration: | N8640A |
| MSN: | D2050 |
| Year of manufacture: | 1949 |
| Total airframe hrs: | 2469 hours |
| Engine model: | CONTINENTAL E-225-8 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Jacksonville, IL -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Carbondale, IL (KMDH) |
| (KIJX) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT REPORTED THAT HIS EN ROUTE ALTITUDE WAS 4,500 FT MSL, AND THAT HE ENCOUNTERED NO TURBULENCE. HE BEGAN A 150-155 MPH DESCENT BY REDUCING POWER TO 20 INCHES AND APPLYING LIGHT FORWARD PRESSURE TO THE YOKE. HE FELT A VIOLENT SHUDDER AND RELEASED THE PRESSURE ON THE YOKE, WHICH STOPPED THE SHUDDER. INSPECTION OF THE AIRPLANE REVEALED BUCKLED AND WRINKLED SKIN, POPPED RIVETS, AND BULKHEAD CRACKS. THE RUDDERVATORS HAD IMPROPER HARDWARE INSTALLED, A LOOSE BEARING, AND IMPROPERLY INSTALLED ELEVATOR TRIM TABS. THE RUDDERVATORS WERE TESTED FOR BALANCE. THE RIGHT RUDDERVATOR HAD A BALANCE OF 19.26 INCH-POUNDS AND THE LEFT RUDDERVATOR HAD A BALANCE OF 20.05 INCH-POUNDS. THE RIGHT RUDDERVATOR WAS WITHIN THE BALANCE LIMITS OF 16.8 TO 19.8 INCH-POUNDS, AND THE LEFT RUDDERVATOR WAS OUT OF BALANCE.
Probable Cause: improper maintenance and inspection of the airplane's ruddervators.
Accident investigation:
 |
|
Sources:
NTSB CHI95LA186
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Mar-2024 19:35 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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