Individually Owned: 150,657
Corporate Owned: 137,281
Anchorage International Airport
Aircraft Accident/Incident Report
Anchorage, Alaska 99502
Tuesady, September 12, 2000 13:37 AKD
NTSB Narrative Summary Released at Completion of Accident
During a practice instrument approach to Kenai Municipal Airport, the airplane's landing gear was extended. The first pilot noted the gear extension seemed different from previous extensions, in that the gear seemed to "hang" momentarily before completing the extension cycle. Coincidental with the lowering of the landing gear, the right engine fire bottle discharge light illuminated. The pilot initiated a missed approach and returned to Anchorage. After arrival in the Anchorage area, the pilots attempted to lower the landing gear via normal extension procedures. The first pilot reported that the indicator light for the right main gear did not illuminate. After confirming that the right main gear was not down, he made numerous attempts to extend the landing gear via normal procedures and manual gear extension procedures. After determining that the right main landing gear could not be extended, the first pilot elected to perform a wheels-up landing to runway 14. Postaccident examination of the airplane revealed that the right landing gear upper and lower drag leg had separated as a unit from its attach point on the forward wing spar. The support bracket and rib assembly for the drag leg were still attached to the upper drag link. Two longitudinal formers located between the forward and aft spars were buckled. Black, tire-like, skid marks were noted on the inside surface of the landing gear door. The airplane was placed on jacks and the landing gear was functionally checked. During the extension sequence, it was noted that the right main gear tire jammed on the inside of the outboard landing gear door, preventing the gear from completing its extension cycle. The left main gear and nose gear completed the extension cycle and the two associated down indication lights illuminated.
NTSB Probable Cause Narrative
The failure of the right main landing gear drag leg (scissors) attach point, which resulted in the landing gear becoming jammed against the landing gear door during the extension cycle.
Event Information
| Type of Event | Accident |
| Event Date | 9/12/2000 |
| Event Day of the Week | Tuesday |
| Time of Event | 1337 |
| Event Time Zone | -- |
| Event City | ANCHORAGE |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99502 |
| Event Date Year | 2000 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | ANCHORAGE INTERNATIONAL |
| Event Location Nearest Airport ID | PANC |
| 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 | 144 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1342 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | ANC |
| Elevation of weather observation facility | 144 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 25000 |
| Lowest Non-Ceiling Height | 10000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| 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) | 52 |
| Dew Point at event time (in degress fahrenheit) | 38 |
| Wind Direction (degrees magnetic) | 170 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 10834 |
| NTSB Notification Source | FAA REGIONAL OPERATIONS CTR |
| NTSB Notification Date | Sep 12 2000 12:00AM |
| NTSB Notification Time | 1200 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Nov 1 2001 7:36AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N15 |
| NTSB Number | ANC00GA121 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Beech |
| Aircraft Model | F-90 |
| Aircraft Series Identifier | F-90 |
| Aircraft Serial Number | LA-138 |
| Certified Max Gross Weight | 11030 |
| 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 | 7 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | Apr 11 2000 12:00AM |
| Airframe hours since last inspection | 109 |
| Airframe Hours | 5116 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | FEDERAL AVIATION ADMIN. |
| Aircraft Owner Street Address | 6125 SW 68TH |
| Aircraft Owner City | OKLAHOMA CITY |
| Aircraft Owner State | OK |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 73169 |
| Operator is an individual? | -- |
| 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 | Yes - certificate holder |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | ANC |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 945 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | ANC |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 17 2001 10:40AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 14 |
| Runway Length | 10496 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |