ASN Wikibase Occurrence # 368649
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| Date: | Sunday 4 June 1989 |
| Time: | 11:43 LT |
| Type: |  Beechcraft A24R |
| Owner/operator: | Capital City Air Service, Inc. |
| Registration: | N9700Q |
| MSN: | MC-59 |
| Engine model: | LYCOMING IO-360-A1B |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Gulfport, MS -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Pensacola, FL (KPNS) |
| Baton Rouge, LA (BTR | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE CRUISING IN VFR CONDS ON AN IFR FLT PLAN, THE ENG FAILED & THE PLT ELECTED TO LAND ON A ROAD. AS HE WAS MAKING AN APCH TO LAND, THE ACFT COLLIDED WITH A POWER LINE & A TREE. AN EXAM OF THE ENG REVEALED THE #2 CONNECTING ROD ASSEMBLY HAD FAILED & THE #2 CYLINDER HAD SUBSEQUENTLY SEPARATED. ACCORDING TO THE ACFT OWNER, THE ACFT HAD PREVIOUSLY BEEN INVOLVED IN A SUDDEN ENG STOPPAGE AFTER THE NOSE GEAR HAD COLLAPSED. THE ENG WAS THEN OVERHAULED. AFTER ABOUT ANOTHER 15 HRS OF OPN, THE NOSE GEAR COLLAPSED AGAIN. SUBSEQUENTLY, A DIE PENETRANT CHECK & RUNOUT OF THE CRANKSHAFT FLANGE WAS MADE. ACCORDING TO THE ENG MANUFACTURER, THE INSTALLED CONNECTING RODS & BEARINGS DID NOT CONFORM TO LYCOMING SVC BULLETING #439, DATED 2/17/79. THE ACFT HAD BEEN OPERATED SOME 200 TO 300 HRS SINCE THE LAST ENG OVERHAUL (FOLLOWING THE 1ST GEAR COLLAPSE).
Probable Cause: FAILURE OF A #2 CONNECTING ROD ASSEMBLY, WHICH RESULTED IN SEPARATION OF THE #2 CYLINDER AND SUBSEQUENT LOSS OF ENGINE POWER. CONTRIBUTING FACTORS WERE: INADEQUATE MAINTENANCE, THE TRANSMISSION (POWER) LINE, AND TREES.
Accident investigation:
 |
|
Sources:
NTSB MIA89LA168
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Mar-2024 20:41 | ASN Update Bot | Added |
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