ASN Wikibase Occurrence # 366100
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| Date: | Tuesday 2 October 1990 |
| Time: | 23:59 LT |
| Type: |  Beechcraft C90 King Air |
| Owner/operator: | Dodson Aviation, Inc. |
| Registration: | N7128J |
| MSN: | LJ619 |
| Total airframe hrs: | 13032 hours |
| Engine model: | P&W PT6A-20 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Tampa, FL -
 United States of America
|
| Phase: | Landing |
| Nature: | Ferry/positioning |
| Departure airport: | Olathe, KS (KOJC) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING FLT BEFORE ACCIDENT FLT, THE LANDING GEAR MALFUNCTIONED. EMERGENCY GEAR EXTENSION WAS ACCOMPLISHED BUT REQUIRED EXCESSIVE FORCE. MAINTENANCE PERSONNEL LUBRICATED THE NOSE GEAR RETRACT CHAIN & ADJUSTED THE GEAR DOWN LIGHT INDICATOR SWITCH. THE AIRPLANE WAS FLOWN WITH NO DISCREPANCIES NOTED. THE ACCIDENT FLT WAS UNEVENTFUL UNTIL AFTER LOWERING THE LANDING GEAR SELECTOR HANDLE, THE GEAR DID NOT FULLY EXTEND. THE EMERGENCY METHOD WAS UNSUCCESSFUL. THE MAIN GEAR COLLAPSED DURING THE LANDING ROLL. EXAM OF THE LANDING GEAR SYSTEM REVEALED THAT THE NOSE GEAR ACTUATOR WAS SEIZED DUE TO LACK OF LUBRICATION. THE ACFT LOGBOOKS INDICATE THAT ALL GEAR ACTUATORS WERE REPLACED ON 8-23-86. THERE WERE NO FURTHER ENTRIES INDICATING THAT THEY WERE LUBRICATED. ACCORDING TO THE MAINT MANUAL, THE ACTUATORS SHOULD BE REMOVED FOR LUBRICATION EVERY 1,000 CYCLES OF OPERATION OR 30 MOS., WHICHEVER OCCURS FIRST. THE ACFT ACCUMULATED 3,154 CYCLES SINCE REPLACEMENT OF THE ACTUATORS.
Probable Cause: THE LACK OF LUBRICATION BY MAINTENANCE PERSONNEL OF THE NOSE LANDING GEAR ACTUATOR.
Accident investigation:
 |
|
Sources:
NTSB MIA91LA003
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 17:21 | ASN Update Bot | Added |
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