# Incident 20121125027399I: Beech 95-A55, Tucumcari, NM, November 25, 2012 - Type: FAA incident report (Accident/Incident Data System), as reported - Date: November 25, 2012, 10:02 local time - Place: Tucumcari, NM - Airport: Tucumcari Regional - Damage: Minor damage - Phase of flight: Cruise/Level Flight - Operating rules: General operating rules (Part 91) - Location: 35.1828° N, 103.6032° W: Placed by OpenAirDocs at TUCUMCARI MUNI (TCC), within about a mile (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=35.1828&lon=-103.6032&mi=10 - Aircraft: N169SP, registered now (https://openairdocs.org/aircraft/N169SP) (OpenAirDocs) - Registry model: Beech 95-A55 (registry code 1152704, https://openairdocs.org/model/beech-95-a55) (OpenAirDocs) - Registry engine: Continental IO-470-L (registry code 17348, https://openairdocs.org/engine/continental-io-470-l) (OpenAirDocs) - Reported make and model: BEECH 95-A55 - Reported engine: TCM IO470-L - People aboard: 4 - Fatal injuries: 0 - Other injuries: 0 - Pilot certificates: Airline transport, commercial pilot, flight instructor - Pilot flight hours: 8,500 total, 200 in this make and model, 30 in the last 90 days - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/20121125027399I ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. ON NOVEMBER 25, 2012 PILOT IN COMMAND (PIC) FUELED 50 GALLONS OF FUEL IN SLATON, TX (F49) FOR A TOTAL OF 100 GALLONS ON BOARD ON HIS BEECH BARON, N169SP AND DEPARTED FOR DURANGO CO (KDRO)WITH 3 PAX ON BOARD. WHILE CRUISING IN LEVEL FLIGHT,AT 10,500 FT APPROXIMATELY 23 NAUTICAL MILES SOUTH/SOUTHWEST OF TUCUMCARI AIRPORT (KTCC) PILOT HEARD A LOUD BANG, OBSERVED SMOKE COMING OUT OF RH ENGINE, BULGING OF THE RH OB ENGINE COWL AND LOST OIL PRESSURE. PIC INITIATED EMERGENCY PROCEDURES AND DIVERTED TO TUCUMCARI AIRPORT (KTCC) AND MADE AN UNEVENTFUL SINGLE ENGINE LANDING. PRIOR TO THAT THERE WERE NO ABNORMAL ENGINE INDICATIONS. THERE WAS NO ADDITIONAL DAMAGE TO THE AIRCRAFT AND THERE WERE NO INJURIES.UPON FURTHER INVESTIGATION, THE # 3 CYLINDER WAS FOUND TO BE SEPARATED FROM THE ENGINE. THERE WAS DAMAGE TO THE PISTON, RINGS, CYLINDER BASE, STUDS AND CASE. THE FORWARD LOWER STUD WAS FOUND IN THE OIL PAN WITH NO CYLINDER BASE NUT ON IT. THE CRANK CASE CYLINDER BOSS SHOWED SIGNS OF FRETTING/CHAFING THAT WAS CENTERED AT THE FORWARD LOWER CYLINDER BASE STUD AREA. THE CYLINDER SKIRT OUTSIDE SURFACE HAD MATCHING SCAR MARKS.THE ENGINE (S/N 192042-7-L-R) HAD APPROXIMATELY 418 HOURS SINCE LAST MAJOR OVERHAUL.THE ENGINE WAS APPROVED FOR RETURN TO SERVICE AS AIRWORTHY AT THE LAST ANNUAL INSPECTION, WITH NO DISCREPANCIES NOTED, ON 4/24/2012, TACH TIME 1817.7 THERE WERE NO OTHER PROBLEMS/DEFECTS WITH THE ENGINE DURING THE INSPECTION. From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.