Individually Owned: 150,657
Corporate Owned: 137,281
Fort Smith Regional Airport
Aircraft Accident/Incident Report
Fort Smith, Arkansas 72901
Saturday, September 11, 1999 20:30 CDT
NTSB Narrative Summary Released at Completion of Accident
The airplane's right main landing gear collapsed upon landing. According to the pilot, he was flying on an IFR flight plan from Oklahoma City, Oklahoma, to Little Rock, Arkansas, when the 'oil pressure went beyond the green range.' He diverted to Fort Smith, Arkansas, and when he extended the landing gear, the 'indicator light did not come on.' He executed a low flyby over the airport to allow the controllers in the control tower to try to determine if the landing gear was extended. The tower controllers verified that the gear was extended, but could not determine if it was in the locked position. Upon landing, the right main landing gear collapsed. Examination of the airplane revealed that the electric pump motor/hydraulic power pack had failed. The electric pump motor/hydraulic power pack was replaced, and the gear system operated within manufacturer's specifications.
NTSB Probable Cause Narrative
The failure of the electric pump motor/hydraulic power pack resulting in the collapse of the right main landing gear upon landing.
Event Information
| Type of Event | Accident |
| Event Date | 9/11/1999 |
| Event Day of the Week | Saturday |
| Time of Event | 2030 |
| Event Time Zone | Central Daylight Time |
| Event City | FORT SMITH |
| Event State | ARKANSAS |
| Event Country | -- |
| Zipcode of the event site | 72901 |
| Event Date Year | 1999 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | FORT SMITH REGIONAL |
| Event Location Nearest Airport ID | FSM |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 469 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1953 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | FSM |
| Elevation of weather observation facility | 469 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Night/Dark |
| Lowest Ceiling Height | 11000 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 21 |
| Dew Point at event time (in degress fahrenheit) | 18 |
| Wind Direction (degrees magnetic) | 360 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 18 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | 1338 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1210 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Sep 15 1999 12:00AM |
| NTSB Notification Time | 1200 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jan 10 2001 10:01AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N9724B |
| NTSB Number | FTW99LA258 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | 172RG |
| Aircraft Series Identifier | 172RG |
| Aircraft Serial Number | 172RG0994 |
| Certified Max Gross Weight | 2658 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| 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 | Nov 13 1998 12:00AM |
| Airframe hours since last inspection | 232 |
| Airframe Hours | 8462 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | CHRISTIANSEN AVIATION INC. |
| Aircraft Owner Street Address | P.O. BOX 702412 |
| Aircraft Owner City | TULSA |
| Aircraft Owner State | OK |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 74170 |
| Operator is an individual? | -- |
| Operator Name | FLIGHT WORKS INC. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 7301 N.W. 50TH STREET |
| Operator City | BETHANY |
| Operator State | OK |
| Operator Country | |
| Operator Zip code | 73008 |
| Operator Code | |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | PWA |
| Departure City | OKLAHOMA CITY |
| Departure State | OK |
| Departure Country | |
| Departure Time | 1845 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | LIT |
| Destination City | LITTLE ROCK |
| Destination State | AR |
| Destination Country | |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 10 2001 12:27PM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 25 |
| Runway Length | 8000 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |