Accident Piper PA-24-250 Comanche N6767P,
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ASN Wikibase Occurrence # 164808
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Date:Friday 3 January 2014
Type:Silhouette image of generic PA24 model; specific model in this crash may look slightly different    
Piper PA-24-250 Comanche
Registration: N6767P
MSN: 24-1897
Year of manufacture:1960
Total airframe hrs:4500 hours
Engine model:Lycoming 0-540-A1B5
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Location:Grant County Airport (KSVC), Silver City, NM -   United States of America
Phase: Landing
Departure airport:Deming, NM (DMN)
Destination airport:Deming, NM (DMN)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The pilot reported that he lowered the landing gear and observed gear-down indications before touchdown; however, the landing gear collapsed during the landing. A postaccident examination of the airplane revealed that all three landing gear had collapsed; no anomalies in the extension/retraction linkage were found.
The airplane owner reported that, during recovery of the airplane, he had adjusted the nose landing gear actuating rod for the nose gear to fully seat on the stop flats. Additionally, the landing gear had been serviced during the most recent annual inspection, which was about 24 flight hours before the accident. Although it is possible that the landing gear was not properly adjusted after the maintenance work, several flights had been conducted in the interim without any reported issues related to the landing gear system.
Postaccident examinations revealed that the nose landing gear down lock switch was improperly mounted upside down and that the limit switch was stuck in the closed position. The inoperative nose landing gear switch would have provided a gear down/locked indication to the pilot regardless of the nose landing gear condition. It is possible that the nose landing gear did not fully extend and lock down before landing due to either the inoperative limit switch or a slight misrigging of the system. However, because the landing gear was operated by the transmission jackscrew, it is unlikely that an issue with the nose landing gear would have caused a collapse of the main landing gear if the main landing gear was fully extended and locked in the down position. The reason for the landing gear collapse could not be determined.

Probable Cause: The collapse of the landing gear during landing for reasons that could not be determined during postaccident examinations.

Accident investigation:
Investigating agency: NTSB
Report number: CEN14LA107
Status: Investigation completed
Download report: Final report


FAA register:


Revision history:

20-Mar-2014 01:43 Geno Added
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
29-Nov-2017 13:22 ASN Update Bot Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative]

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