ASN Wikibase Occurrence # 369083
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Date: | Tuesday 14 March 1989 |
Time: | 14:38 LT |
Type: | Cessna 177RG |
Owner/operator: | Gertner, Robert |
Registration: | N52800 |
MSN: | 177RG1273 |
Year of manufacture: | 1977 |
Total airframe hrs: | 2470 hours |
Engine model: | LYCOMING IO-360-A1B6D |
Fatalities: | Fatalities: 0 / Occupants: 4 |
Aircraft damage: | Minor |
Category: | Serious incident |
Location: | Savannah, GA -
United States of America
|
Phase: | Approach |
Nature: | Private |
Departure airport: | Ft Lauderdale, FL (FXE |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE AIRPLANE LANDED GEAR-UP AFTER THE PLT WAS UNABLE TO LOWER THE GEAR USING THE NORMAL OR EMERGENCY GEAR EXTENSION SYSTEMS. EXAMINATION OF THE AIRPLANE AFTER THE MISHAP REVEALED THAT THE MLG ACTUATOR ROD END HAD FRACTURED. METALLURGICAL EXAMINATION OF THE FRACTURE SURFACE REVEALED PROGRESSIVE FATIGUE CRACKING THROUGH THE THREADED SHANK. IN 1979, CESSNA HAD ISSUED A SERVICE LETTER RECOMMENDING THE REPLACEMENT OF THIS P/N ROD END WITH A NEW, HIGH-STRENGTH ROD END. COMPLIANCE WITH THE SERVICE LETTER WAS NOT MANDATORY. EXAMINATION OF SDR'S FROM 1983 TO 1989 REVEALED NO HISTORY OF SIMILAR FAILURES INVOLVING THE OLD P/N ROD END.
Probable Cause: FATIGUE-INDUCED FRACTURE OF THE MAIN LANDING GEAR ACTUATOR ROD END.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ATL89IA104 |
Status: | Investigation completed |
Duration: | 3 years and 5 months |
Download report: | Final report |
|
Sources:
NTSB ATL89IA104
Revision history:
Date/time | Contributor | Updates |
24-Mar-2024 10:39 |
ASN Update Bot |
Added |
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