Individually Owned: 150,657
Corporate Owned: 137,281
Pensacola Regional Airport
Aircraft Accident/Incident Report
Pensacola, Florida 32504
Wednesday, December 13, 2000 22:27 CST
NTSB Narrative Summary Released at Completion of Accident
After takeoff the landing gear would not retract and the landing gear warning horn sounded. The pilot continued to the destination airport and when weather prevented a landing, he returned to the departure airport. After landing the aircraft swerved to the left and the left main gear tire could be heard squealing. The aircraft went off the side of the runway and the left main gear collapsed and separated. Post crash examination of the aircraft showed the washer, which retains the bolt in the left main gear scissors, had failed and the scissors had separated. This allowed the gear to turn and prevented the gear from retracting due to the ground switch on the scissors not being able to open during takeoff. The failed washer was the subject of Cessna Aircraft Company, Service Information Letter ME83-37, dated November 23, 1983. This letter called for replacement of this washer with a thicker washer at the next routine 100-hour inspection.
NTSB Probable Cause Narrative
The failure of the left main landing gear scissors washer during taxi for takeoff, and collapse of the left main landing gear. A factor in the accident was the failure of unknown maintenance personnel to comply with a manufacturers service letter concerning the scissors washers.
Event Information
| Type of Event | Accident |
| Event Date | 12/13/2000 |
| Event Day of the Week | Wednesday |
| Time of Event | 2227 |
| Event Time Zone | Central Standard Time |
| Event City | PENSACOLA |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 32504 |
| Event Date Year | 2000 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | PENSACOLA REGIONAL |
| Event Location Nearest Airport ID | PNS |
| 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 | 121 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 2220 Central Standard Time |
| Direction of event from weather observation facility (degrees) | 170 |
| Weather Observation Facility ID | PNS |
| Elevation of weather observation facility | 121 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | CST |
| Lighting Conditions | Night/Dark |
| Lowest Ceiling Height | 600 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 6 |
| Air Temperature at event time (in degrees celsius) | 21 |
| Dew Point at event time (in degress fahrenheit) | 21 |
| Wind Direction (degrees magnetic) | 160 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 16 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 23 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 800 |
| 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 | 4 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 978 |
| NTSB Notification Source | FAA ATL. Comm. Center |
| NTSB Notification Date | Dec 14 2000 12:00AM |
| NTSB Notification Time | 1000 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jul 2 2001 2:41PM |
| User who most recently changed record | MONR |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N781SL |
| NTSB Number | MIA01LA040 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| 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 | 421B |
| Aircraft Series Identifier | 421B |
| Aircraft Serial Number | 421B0343 |
| Certified Max Gross Weight | 7450 |
| 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 | 8 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Nov 20 2000 12:00AM |
| Airframe hours since last inspection | 17 |
| Airframe Hours | 7310 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | SILVER LINING LEASING |
| Aircraft Owner Street Address | 2470 AIRPORT BLVD. |
| Aircraft Owner City | PENSACOLA |
| Aircraft Owner State | FL |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 32504 |
| Operator is an individual? | -- |
| Operator Name | LIFEGUARD AIR AMBULANCE, INC. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 2470 AIRPORT BLVD. |
| Operator City | PENSACOLA |
| Operator State | FL |
| Operator Country | |
| Operator Zip code | 32504 |
| Operator Code | YLAA |
| 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 | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | PNS |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 2130 |
| Departure Time Zone | CST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | VPS |
| Destination City | VALPARAISO |
| Destination State | FL |
| Destination Country | |
| Specific Phase of Flight | Taxi |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 14 2001 4:03AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 17 |
| Runway Length | 7002 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | Yes |
| Medical Flight | Medical Emergency |