Individually Owned: 150,657
Corporate Owned: 137,281
Denver International Airport
Aircraft Accident/Incident Report
Denver, Colorado 80239
Friday, May 19, 2000 6:39 MDT
NTSB Narrative Summary Released at Completion of Accident
When the pilot added power for takeoff, at the origination of a cross-country cargo flight, he heard an impact sound on the right side of the airplane, and the right engine began to vibrate violently. He shut down both engines, declared an emergency, and when the engines had spooled down he exited the airplane. Inspection revealed the right hand propeller had shed a blade, which caused damage to the right engine mounts, right engine nacelle, and propeller shrapnel damage to the fuselage, right wing, and right flap. Examination provided evidence that the propeller blade fractured due to a fatigue crack that emanated from a stress corrosion crack region at the mid span portion on the flat side of the blade. The coating on the surface of the blade in the area of the stress corrosion cracking had been breached. The breach in the coating allowed corrosion media to attack the blade.
NTSB Probable Cause Narrative
propeller blade fatigue failure due to stress corrosion.
Event Information
| Type of Event | Accident |
| Event Date | 5/19/2000 |
| Event Day of the Week | Friday |
| Time of Event | 639 |
| Event Time Zone | Mountain Daylight Time |
| Event City | DENVER |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 80239 |
| Event Date Year | 2000 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | DENVER INTERNATIONAL |
| Event Location Nearest Airport ID | DVX |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 5431 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 629 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | DEN |
| Elevation of weather observation facility | 5431 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 15000 |
| 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) | 43 |
| Dew Point at event time (in degress fahrenheit) | 27 |
| Wind Direction (degrees magnetic) | 230 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 5500 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11230 |
| NTSB Notification Source | FAA NW OPERATIONS CENTER |
| NTSB Notification Date | May 19 2000 12:00AM |
| NTSB Notification Time | 700 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jan 2 2002 7:11AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N235BA |
| NTSB Number | DEN00FA092 |
| 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 | Swearingen |
| Aircraft Model | SA226TC |
| Aircraft Series Identifier | SA226TC |
| Aircraft Serial Number | TC235 |
| Certified Max Gross Weight | 12500 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | Unknown |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 3 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | May 17 2000 12:00AM |
| Airframe hours since last inspection | 2 |
| Airframe Hours | 26778 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | SUPERIOR AVIATION, INC. |
| Aircraft Owner Street Address | 250 RIVERHILLS ROAD |
| Aircraft Owner City | KINGSFORD |
| Aircraft Owner State | MI |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 49802 |
| 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 | EATA |
| 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 | Cargo |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | DVX |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 635 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | MJT |
| Destination City | MONTROSE |
| Destination State | CO |
| Destination Country | |
| Specific Phase of Flight | Takeoff |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Dec 1 2001 4:45AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 35L |
| Runway Length | 12000 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |