# Accident 19981206032749A: Beech 58, Norman, OK, December 6, 1998 - Type: FAA accident report (Accident/Incident Data System), as reported - Date: December 6, 1998, 09:34 local time - Place: Norman, OK - Airport: University Of Oklahoma - Damage: Destroyed - Phase of flight: Initial Approach-IFR - Operating rules: General operating rules (Part 91) - Location: 35.2393° N, 97.5900° W: From the FAA, an estimate near the named town, within about 3 miles - Nearby events: https://openairdocs.org/map.md?lat=35.2393&lon=-97.5900&mi=10 - Aircraft: N1826S, a cancelled registration (https://openairdocs.org/deregistered/N1826S-2000-04-04) (OpenAirDocs) - Registry model: Beech 58 (registry code 1152740, https://openairdocs.org/model/beech-58) (OpenAirDocs) - Reported make and model: BEECH 58 - Reported engine: CONT IO520CB - People aboard: 1 - Fatal injuries: 1 - Pilot flight hours: 4,550 total, 2,337 in this make and model, 40 in the last 90 days - NTSB investigation: [NTSB FTW99FA044](https://openairdocs.org/ntsb/FTW99FA044) (OpenAirDocs) - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/19981206032749A ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. ACFT CRASHED 8 MILES SW OF WESTHEIMER ARPT WHILE ON LOCALIZER APPROACH TO RWY 3. (.4)ON DECEMBER 6, 1998, AT 0934 CENTRAL STANDARD TIME, A BEECH 58, TWIN-ENGINE AIRPLANE, N1826S, WAS DESTROYED UPON IMPACT WITH TERRAIN FOLLOWING AN IN-FLIGHT ENCOUNTER WITH SEVERE WEATHER WHILE ON A LOCALIZER INSTRUMENT APPROACH NEAR NEWCASTLE, OKLAHOMA. THE INSTRUMENT RATED PRIVATE PILOT, SOLE OCCUPANT OF THE AIRPLANE, WAS FATALLY INJURED. THE AIRPLANE WAS OWNED AND OPERATED BY THE PILOT. THE AIRPLANE WAS OPERATING IN INSTRUMENT METEOROLOGICAL CONDITIONS AND AN IFR FLIGHT PLAN WAS FILED FOR THE TITLE 14 CODE OF FEDERAL REGULATIONS PART 91 PERSONAL FLIGHT. THE CROSS-COUNTRY FLIGHT ORIGINATED FROM THE IDABEL AIRPORT (F62), NEAR IDABEL, OKLAHOMA, AT APPROXIMATELY 0852, WITH THE MAX WESTHEIMER AIRPORT (OUN), IN NORMAN, OKLAHOMA, AS ITS INTENDED DESTINATION. (OUN IS LOCATED 152-NAUTICAL MILES NORTHWEST OF F62.) AT 0915, A BOEING 737, SOUTHWEST AIRLINES (SWA) FLIGHT 474 FROM DALLAS LOVE FIELD AIRPORT (DAL) TO OKLAHOMA CITY WILL ROGERS WORLD AIRPORT (OKC), EXECUTED A MISSED APPROACH AFTER ENCOUNTERING SEVERE TURBULENCE AND WIND SHEAR DURI NG AN INSTRUMENT APPROACH TO RUNWAY 35R AT OKC. (OKC IS LOCATED 12-NAUTICAL MILES NORTHWEST OF OUN.) THE FLIGHT DIVERTED BACK TO DAL DUE TO THE WEATHER IN THE OKC AREA. THE CAPTAIN STATED THAT THE EVENT WAS PROMINENT AT 3,000 FEET AFTER THE GLIDE SLOPE WAS CAPTURED. THE CAPTAIN FURTHER REPORTED THAT THE AIRSPEED FLUCTUATED PLUS OR MINUS 50 KNOTS. THE PILOT OF N1826S WAS ADVISED BY AIR TRAFFIC CONTROL OF THE SEVERE TURBULENCE/WIND SHEAR ENCOUNTER REPORTED BY THE SOUTHWEST FLIGHT. N1826S WAS IN LEVEL FLIGHT AT 4,000 FEET, OPERATING IN SMOOTH AIR AT THAT TIME. ACCORDING TO OUN CONTROL TOWER PERSONNEL, THE PILOT ESTABLISHED RADIO CONTACT WITH THEM AT 0932 WHILE THE AIRPLANE WAS INBOUND FOR THE LOCALIZER APPROACH TO RUNWAY 03 AT OUN. ABOUT A MINUTE LATER, THE AIRPLANE WAS OBSERVED ON RADAR ABOUT ONE MILE NORTH OF THE FINAL APPROACH COURSE. THE PILOT REPORTED THAT HE WAS NOT GOING TO BE ABLE TO CONTINUE THE APPROACH. WHEN QUESTIONED BY THE TOWER ABOUT HIS INTENTIONS, THE PILOT REPLIED, "I AM GOING TO STAY RIGHT HERE UNTIL I GET OUT OF SOME OF THIS." THE PILOT DID NOT REPLY TO ANY FURTHER RADIO CALLS FROM THE TOWER. A WITNESS NEAR THE ACCIDENT SITE OBSERVED THE AIRPLANE DESCENDING OUT O F THE CLOUDS HEADING IN A WESTERLY DIRECTION WITH A 45-DEGREE NOSE DOWN ATTITUDE. THE WITNESS LOST SIGHT OF THE AIRPLANE, HEARD THE SOUND OF THE GROUND IMPACT, AND SOON THEREAFTER HEARD THE SIRENS FROM THE FIRE AND RESCUE VEHICLES. (-23) PILOT LOST CONTROL AFTER CONTINUING FLIGHT INTO ADVERSE WEATHER CONDITIONS RESULTING IN COLLISION WITH TERRAIN. ## The NTSB's investigation of this event (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB FTW99FA044](https://openairdocs.org/ntsb/FTW99FA044), Dec 6, 1998: Beech 58 (N1826S), Newcastle, OK, destroyed, 1 fatal. Probable cause: the pilot's loss of control due to his inadvertent encounter with severe turbulence and wind shear during an instrument approach. Factors contributing to the accident were the severe turbulence and… 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.