Individually Owned: 150,657
Corporate Owned: 137,281
Auburn University Regional Airport
Aircraft Accident/Incident Report
Auburn, Alabama 36801
Friday, July 6, 2012 14:55 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that, as the nose landing gear contacted the runway during landing, he heard the tire squealing. The airplane veered right, the nose landing gear collapsed, and the airplane departed the right side of the runway. Postaccident examination revealed that the engine mount had a circumferential fracture at the nose landing gear attachment foot and that the fracture exhibited features consistent with failure due to fatigue. A longitudinal fracture was also found extending from the circumferential fracture to the outboard end of the attachment foot. The surface of the fracture area displayed a matte black appearance, in contrast to the glossy black appearance of the adjoining support tubes. In addition, green primer, which displayed features consistent with brush strokes, could be seen through the coating in areas near the weld. Before the accident, the manufacturer had issued a series of service bulletins (SB) that required recurring inspections for cracks in the engine mounts in the areas of the nose landing gear actuator attachment feet, the most recent of which was SB-1103D. These inspections required that paint be removed from and around the attachment feet and that corrosion prevention compound be applied after the inspection was completed. Although the nonuniform paint coverage and brush marks around the right attachment foot suggested that the paint might have been removed in accordance with the SB’s inspection procedures, no corrosion prevention compound was observed on the accident airplane’s engine mount, which indicates that full compliance with the SB had not occurred. Review of the airplane’s maintenance log entries revealed that none of the entries referred to compliance with any revision of the SB. The maintenance log entry for the most recent annual inspection, which was performed in July 2011, stated, “Note - SB1103D not performed this date at owner’s request.” If the airplane owner had maintenance personnel inspect the engine mount in accordance with the SB, the development and propagation of the fatigue cracking at the nose landing gear actuator attachment foot might have been detected and remedied before the accident.
NTSB Probable Cause Narrative
The airplane owner’s failure to have maintenance personnel comply with an aircraft manufacturer's service bulletin to require engine mount inspections for fatigue cracks, which resulted in an undetected fatigue crack, the engine mount failing, and the nose landing gear collapsing during landing.
Event Information
| Type of Event | Accident |
| Event Date | 7/6/2012 |
| Event Day of the Week | Friday |
| Time of Event | 1455 |
| Event Time Zone | Central Daylight Time |
| Event City | Auburn |
| Event State | ALABAMA |
| Event Country | -- |
| Zipcode of the event site | 36801 |
| Event Date Year | 2012 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 323655N |
| Event Location Longitude | 0852602W |
| Event Location Airport | Auburn University Regional |
| Event Location Nearest Airport ID | AUO |
| 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 | 777 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1455 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | AUO |
| Elevation of weather observation facility | 777 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 33 |
| Dew Point at event time (in degress fahrenheit) | 22 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.96 |
| 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 | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 32823 |
| NTSB Notification Source | FAA Southern ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jun 26 2014 3:55PM |
| User who most recently changed record | kenj |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N4133G |
| NTSB Number | ERA12LA441 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA-46-350P |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 4636186 |
| Certified Max Gross Weight | 4300 |
| 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 | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 10 2011 12:00AM |
| Airframe hours since last inspection | 36 |
| Airframe Hours | 700 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | SYSTEM DESIGNS INC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | BELDEN |
| Aircraft Owner State | MS |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 38826-9766 |
| Operator is an individual? | No |
| Operator Name | SYSTEM DESIGNS INC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | BELDEN |
| Operator State | MS |
| Operator Country | USA |
| Operator Zip code | 38826-9766 |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | 8M1 |
| Departure City | Booneville |
| Departure State | MS |
| Departure Country | USA |
| Departure Time | 1340 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | AUO |
| Destination City | Auburn |
| Destination State | AL |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 26 2014 3:56PM |
| User who most recently changed record | kenj |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 18 |
| Runway Length | 5624 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |