Individually Owned: 150,657
Corporate Owned: 137,281
Ames Muni Airport
Aircraft Accident/Incident Report
Ames, Iowa 50010
Sunday, October 22, 2006 14:30 CDT
NTSB Narrative Summary Released at Completion of Accident
The airplane was operated as an instructional airplane when the nose landing gear collapsed during landing. The flight instructor stated that he and the dual student did not receive "a green light indicating gear down and locked" when landing. They reported cycling the landing gear several times but could not get a down and locked indication. Examination of the landing gear revealed that the two nose gear down lock actuator pins exhibited fatigue fracture over 70 percent of the fracture surface. Cessna service bulletin SEB95-20, recommends a reoccurring 200-hour inspection of the down lock pins for looseness. If looseness or movement is observed, Service kit SK210-155 is to be installed prior to further flight. The service bulletin does not provide for the visual inspection of the pins for fatigue cracks The pins were of the older design, and were reportedly inspected and no looseness was observed. Following the accident, the operator reported that one of the fractured pins was still not loose until he exerted a greater amount of force to check for looseness.
NTSB Probable Cause Narrative
The fatigue failure of the landing gear actuator pin and the exterior visual maintenance inspection for cracks not possible by company maintenance personnel.
Event Information
| Type of Event | Accident |
| Event Date | 10/22/2006 |
| Event Day of the Week | Sunday |
| Time of Event | 1430 |
| Event Time Zone | Central Daylight Time |
| Event City | Ames |
| Event State | IOWA |
| Event Country | -- |
| Zipcode of the event site | 50010 |
| Event Date Year | 2006 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 415931N |
| Event Location Longitude | 0933719W |
| Event Location Airport | Ames Muni |
| Event Location Nearest Airport ID | AMW |
| 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 | 955 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1453 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | AMW |
| Elevation of weather observation facility | 955 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 4900 |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 4 |
| Dew Point at event time (in degress fahrenheit) | -6 |
| Wind Direction (degrees magnetic) | 320 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.12 |
| 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) | 22868 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Oct 22 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jan 30 2008 4:08PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Des Moines FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5274S |
| NTSB Number | CHI07LA011 |
| 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 | R182 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | R18201534 |
| Certified Max Gross Weight | 3100 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Aug 1 2006 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 6406.2 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Hap's Air Inc. |
| Aircraft Owner Street Address | 2508 Airport Dr |
| Aircraft Owner City | Ames |
| Aircraft Owner State | IA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 50010 |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | -- |
| Operator State | -- |
| Operator Country | -- |
| Operator Zip code | -- |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| 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 | AMW |
| Departure City | Ames |
| Departure State | IA |
| Departure Country | USA |
| Departure Time | 1400 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | AMW |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Landing - flare/touchdown |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Dec 19 2007 4:39PM |
| User who most recently changed record | DINC |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 31 |
| Runway Length | 3492 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |