Orlando Sanford International Airport
Aircraft Accident/Incident Report

Sanford, Florida 32773
Friday, April 1, 2011 15:45 EDT

NTSB Narrative Summary Released at Completion of Accident

The flight instructor and private pilot were performing touch-and-go landings. While retracting the landing gear, they heard a loud bang. The gear-up light illuminated, indicating that all three landing gears were retracted and the doors were closed. The instructor concluded that the noise came from the landing gear doors closing into each other. The flight continued, and two more landings were planned: one touch-and-go and one full stop. The landing gear appeared to operate normally during the touch-and-go. Upon extending the gear for the full stop landing, the gear-down light failed to illuminate. After checking the gear down indicating system, a visual check with the tower controllers confirmed that all three landing gears were in the down position. During touchdown, the nose gear collapsed. A postaccident examination of the nose gear assembly revealed that the nose landing gear strut reservoir lacked air pressure and the fluid level was very low. This underserviced condition caused binding in the nose gear fork assembly and failure of a nose gear push rod, which prevented the nose gear from extending to the full down and locked position.

NTSB Probable Cause Narrative

The failure of the nose landing gear due to inadequate servicing of the nose gear strut reservoir.

Event Information

Type of Event Accident
Event Date 4/1/2011
Event Day of the Week Friday
Time of Event 1545
Event Time Zone Eastern Daylight Time
Event City Sanford
Event State FLORIDA
Event Country --
Zipcode of the event site 32773
Event Date Year 2011
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 284622N
Event Location Longitude 0181404W
Event Location Airport Orlando Sanford International
Event Location Nearest Airport ID SFB
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 55
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1553 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID SFB
Elevation of weather observation facility 55
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 19
Altimeter Setting at event time (in. Hg) 29.84
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 30033
NTSB Notification Source FAA Southern ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 2 2012 4:58PM
User who most recently changed record snyg
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6781X
NTSB Number ERA11LA221
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 310F
Aircraft Series Identifier --
Aircraft Serial Number 310-0081
Certified Max Gross Weight 4600
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats 3
Total number of seats on the aircraft 5
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 11 2011 12:00AM
Airframe hours since last inspection 23
Airframe Hours 3245
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C91
Aircraft Owner Name Edward Moon
Aircraft Owner Street Address --
Aircraft Owner City WINTER SPRINGS
Aircraft Owner State FL
Aircraft Owner Country USA
Aircraft Owner Zipcode 32708-5190
Operator is an individual? No
Operator Name Edward Moon
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City WINTER SPRINGS
Operator State FL
Operator Country USA
Operator Zip code 32708-5190
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code SFB
Departure City Sanford
Departure State FL
Departure Country USA
Departure Time 1500
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code SFB
Destination City Sanford
Destination State FL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 26 2012 1:46PM
User who most recently changed record gots
Since inspection or accident Time of Accident
Event Location Runway Number and Location 27
Runway Length 9601
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --