DFW08CA070 · Cessna 172S
Christiansen Aviation Cessna 172S · Accident: ground collision while taxiing
From Okmulgee Regional Airport (OKM) to Tulsa Riverside Airport (RVS)
Event
- NTSB case
- DFW08CA070
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Cessna 172S
- Aircraft type
- Cessna 172
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N766PD
- Operator
- Christiansen Aviation
- Onboard fatalities
- Unknown
- Route
- From Okmulgee Regional Airport (OKM), Okmulgee, OKTo Tulsa Riverside Airport (RVS), Tulsa, OK
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Taxi
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Ground collision
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Environmental issues › Operating environment
- Personnel issues › Psychological
- Personnel issues › Task performance
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
While taxiing the airplane to park, the pilot selected an open spot located on the side of the parking apron. The pilot noticed a drainage ditch covered with a metal grate but did not perceive that only a portion of the ditch was covered by the grate. As the pilot maneuvered the airplane to park, the nose wheel entered the uncovered ditch and the propeller contacted the ground. The pilot shut down the airplane and exited normally. Damage was sustained to the airplane's firewall. The pilot was not injured. No markings were present to make the pilot aware of the hazard.
Probable cause
The owner of the parking surface's failure to ensure that the parking surface was clear of hazards to taxiing airplanes and the pilot's failure to ensure a safe taxi route in unfamiliar surroundings.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record DFW08CA070
- Event ID
- 20080228X00244
- Case number
- DFW08CA070
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status, coordinates. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 5c738350b38d803dbb5acb36dbb7f0747e8f8c33c0ebe0b6f7f9fef4a3deec8d; retrieved 2026-09-15T09:23:33.985Z.