CESSNA 525B near Teterboro, NJ — 2015-05-03
Final reportERA15IA206
- Date
- 2015-05-03
- Location
- Teterboro, NJ, USA
- Airport
- TEB
- Aircraft
- CESSNA 525B
- Registration
- N784JS
- Category
- Airplane
- Highest injury
- None
- Fatalities
- 0
- Phase of flight
- Ground
Probable cause
The overstress fracture of the nose landing gear actuator (NLG) attachment lug during tow operations, which resulted in the collapse of the NLG.
NTSB narrative
The unoccupied airplane was parked on the ramp with the parking brake off; ground personnel then attempted to tow the airplane. During the attempted towing, the nose landing gear (NLG) actuator attachment lug fractured, which resulted in the collapse of the NLG. Examination of the NLG actuator attachment lug revealed that the end of the attachment fitting was fractured on both sides of the bearing. The fractured surfaces exhibited features consistent with overstress separation. The reason for the overstress could not be determined.
Analysis
- Primary failure mode
- Mechanical failure
- First missed decision gate
- Ensuring the nose landing gear actuator was functioning properly before towing.
NTSB coding
- Landing gear collapse · Pushback/towing
Evidence available
- Photos
- 7 docket documents
Docket documents7
- Release of Aircraft Wreckage, NTSB Form 6120.15 and NTSB Evidence Control Formform
- Statement from Textron Aviation Technicianinterview
- Statements from Fixed Base Operator Personnelinterview
- Statements from FlightCrewinterview
- Record of Conversationsother
- Photo 1 - Airplane and Associated Ground Equipment (Photo Courtesy of FAA)photos
- Materials Laboratory Factual Reportreport