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ASN Wikibase Occurrence # 145219
Last updated: 18 October 2017
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Date:19-APR-2012
Time:19:15
Type:Silhouette image of generic C210 model; specific model in this crash may look slightly different
Cessna 210 Centurion
Owner/operator:Mcmillen Michael P
Registration: N96050
C/n / msn: 210-61156
Fatalities:Fatalities: 0 / Occupants: 1
Airplane damage: Substantial
Category:Accident
Location:Gatlinburg-Pigeon Forge Airport - KGKT, Sevierville, TN -   United States of America
Phase: Landing
Nature:Private
Departure airport:Kennett, MO (KTX)
Destination airport:Sevierville, TN (GKT)
Investigating agency: NTSB
Narrative:
The pilot entered the airport traffic pattern for landing and completed the before-landing checklist. He lowered the landing gear, and he noticed that the hydraulic unit stayed on and that the landing gear green light indication in the cockpit did not illuminate. He looked outside and the nosewheel was extended, but both main landing gear were only partially extended. He recycled the landing gear with negative results. He also added fluid to the hydraulic fill port in the cockpit, attempted to recycle the landing gear, and conducted some negative "gs," but the gear did not fully extend. The pilot subsequently performed a straight-in approach with the nosewheel down and the main landing gear partially extended. During touchdown, the airplane veered to the left off the side of the runway and came to rest upright in a grassy area.

Examination of the airplane revealed a hole in the landing gear down-pressure hose, which prevented the landing gear from fully extending. Review of service information from the airplane manufacturer revealed that the hoses should be replaced every 5 years. The investigation could not determine when the last time the hose was replaced. The airplane's current mechanic had worked on the airplane for 3 years and had not replaced the hose during that time. He added that the hoses did not look damaged or degraded during the inspections he performed. There was no entry in the logbook to indicate the hydraulic hoses had been replaced within the last 5 years or 1,000 hours.
Probable Cause: Failure of the nose landing gear down pressure hose, which resulted in the main landing gear being unable to lock and collapse of the main landing gear during the landing roll.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20120424X25643&key=1
http://flightaware.com/live/flight/N96050/history


Revision history:

Date/timeContributorUpdates
21-Apr-2012 23:15 Geno Added
21-Apr-2012 23:19 Geno Updated [Source]
02-May-2012 17:10 Geno Updated [Time, Nature, Source, Damage, Narrative]
18-May-2014 18:12 mcmillen Updated [Damage, Narrative]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
19-Aug-2017 16:02 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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