ASN logo
ASN Wikibase Occurrence # 180701
Last updated: 27 October 2020
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:26-OCT-2015
Time:14:23
Type:Silhouette image of generic C150 model; specific model in this crash may look slightly different
Cessna 150M
Owner/operator:Ameri Air Support, Inc.
Registration: N171RD
C/n / msn: 15078530
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Category:Accident
Location:Key Biscayne, FL -   United States of America
Phase: Landing
Nature:Private
Departure airport:Opa-Locka, FL (OPF)
Destination airport:Miami, FL (TMB)
Investigating agency: NTSB
Narrative:
The commercial pilot was conducting a personal flight. The pilot reported that, several minutes after takeoff and while en route to his destination airport, the engine began to run roughly and lose power. He subsequently attempted to restore power without success. He then maneuvered the airplane for a forced landing on the fairway of a golf course. The airplane touched down on wet grass, and the pilot was unable to stop the airplane before it collided with two palm trees, which separated the outboard sections of both wings.
Postaccident examination of the engine revealed that the intake valve of the No. 1 cylinder had failed due to fatigue, which would have resulted in the partial loss of engine power and engine roughness reported by the pilot. The origin and the extent of the fatigue region could not be determined due to postfracture damage. Further examination of the tip of the valve revealed an abnormal contact wear pattern likely caused by either misalignment relative to the valve seat, valve guide wear, or sticking between the valve stem and the valve guide. A review of maintenance records revealed that new cylinders had been installed when the engine was overhauled about 904 total flight hours before the accident.
Probable Cause: The fatigue failure of the No. 1 cylinder intake valve, which resulted in the partial loss of engine power.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20151026X65932&key=1
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=171RD


Revision history:

Date/timeContributorUpdates
27-Oct-2015 01:33 Geno Added
21-Dec-2016 19:30 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
01-Dec-2017 15:28 ASN Update Bot Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative]

Corrections or additions? ... Edit this accident description