ASN Wikibase Occurrence # 201995
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Date: | Monday 15 February 1999 |
Time: | 11:43 |
Type: | Cessna 414 |
Owner/operator: | Infinity Aviation Inc |
Registration: | N1557T |
MSN: | 414-0272 |
Year of manufacture: | 1972 |
Total airframe hrs: | 5363 hours |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Phoenix Sky Harbor International Airport, Phoenix, Arizona -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Scottsdale Airport, Scottsdale, Arizona (SDL/KSDL) |
Destination airport: | Phoenix Sky Harbor International Airport, Phoenix, Arizona (PHX/KPHX) |
Confidence Rating: | Information is only available from news, social media or unofficial sources |
Narrative:On February 15, 1999, the pilot landed on runway 26R at Phoenix Sky Harbor International Airport, Phoenix, Arizona with three green landing gear down indicator lights. He said that the airplane seemed to roll normally down the center line for approximately 200 feet, then the left landing gear collapsed and the airplane subsequently veered off the runway and struck taxiway lights.
Post accident investigation of the airplane revealed that the attachment location of the left main landing gear for the down lock bell crank was separated and the attachment bolt was sheared. Additionally, there was a significant difference in the down lock tension adjustment of the landing gear components of the left side versus the right side of the airplane.
System rigging of the landing gear requires adjustments to the fork bolt and the push-pull tube, which must be made together and in the same amount in opposite directions. The failed components were tested for chemical composition and hardness and all met their material specifications. Metallurgical examination of the parts disclosed that all fractures and bends were a direct result of an overload event. Maintenance records established that a re-rigging was performed on the airplane following the maintenance work on the landing gear system 10 days and 11 flight hours prior to the accident.
Probable Cause: The overload failure of the left main gear locking mechanism due to improper system rigging by maintenance personnel.
Sources:
1. NTSB Identification: LAX99LA097:
https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001205X00188&key=1 2. FAA:
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=1557T Revision history:
Date/time | Contributor | Updates |
26-Nov-2017 10:02 |
ASN Update Bot |
Added |
02-Jul-2018 19:57 |
Dr. John Smith |
Updated [Time, Operator, Location, Phase, Departure airport, Destination airport, Source, Narrative] |
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