Martinaire Aviation Cessna 208B accident
Cessna 208B · Accident: loss of engine power (total) during initial climb
From Guymon Municipal Airport (GUY) to West Woodward Airport (WWR)
Event
- NTSB case
- CEN13FA080
- 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
- Charter & commuter
- 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 208B
- Aircraft type
- Cessna 208
- 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
- N1324G
- Operator
- Martinaire Aviation
- Onboard fatalities
- Unknown
- Route
- From Guymon Municipal Airport (GUY), Guymon, OKTo West Woodward Airport (WWR), West Woodward, OK
- Aircraft age
- About 13 years (built 1999)
- 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 135: Air Taxi & Commuter
- 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
- Initial climb
- 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
- Loss of engine power (total)
- 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
- Aircraft › Aircraft power plant
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The airplane was operating as a night, scheduled cargo flight. The pilot reported that, during departure climb, the engine made a loud bang and that the propeller then spooled down toward feather and stopped. The pilot attempted to restart the engine but was unsuccessful. During the forced landing approach to a two-lane highway, the airplane struck a power line. The airplane then landed hard and subsequently exited the highway on the left side, and the left wing struck a power pole.
A postaccident examination of the engine revealed that one of the compressor turbine blades had fractured near the root due to fatigue cracking. The fractured compressor turbine blade released into the engine path and subsequently impacted adjacent compressor turbine blades and downstream components, which caused the loss of engine power. The source of the fatigue crack could not be determined due to secondary damage sustained to the fracture surface. All other mechanical damage to the engine was consistent with collateral damage sustained subsequent to the release of the compressor turbine blade.
Probable cause
The total loss of engine power as a result of a fractured compressor turbine blade due to fatigue cracking.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN13FA080
- Event ID
- 20121130X01711
- Case number
- CEN13FA080
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2012-11-30.
- API snapshot SHA-256: b181d431fc0524119fe9c89ccb40e699a279b21000166d23dfbf0df0872ae7a3; retrieved 2026-09-15T20:30:08.278Z.