CHI98LA266 · Cessna R182
Cessna R182 · Accident: fire during initial climb
From Bismarck Municipal Airport (BIS) to an unrecorded destination
Event
- NTSB case
- CHI98LA266
- 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
- 0
- 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 R182
- Aircraft type
- Cessna 182
- 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
- N9142C
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Bismarck Municipal Airport (BIS)To not recorded
- 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
- Initial climb
- First occurrenceThe 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
- Fire
- 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
- Fuel system, line fitting › Fatigue
Approximate · Estimated position: the centre of Bismarck, ND, the place the record names. Not the accident site.
NTSB narrative
A fractured electric fuel pump to carburetor T-connector, Part Number AN917-20, fitting was found during inspection of the engine compartment by a Federal Aviation Administration Inspector. Metallurgical analysis of the separated fitting by the National Transportation Safety Board's Material Laboratory revealed clamshell shaped crack arrest marks and step-like features to be present. Closer examination of the step-like features revealed a large number of markings similar to river patterns, which converged at numerous locations on the outside diameter (at the root of the thread) of the fitting. No mechanical damage was noted at any of the crack origin locations. The last airplane inspection was a 100-hour inspection performed in March of 1998.
Probable cause
The fatigue failure of the fuel system line fitting.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CHI98LA266
- Event ID
- 20001211X10517
- Case number
- CHI98LA266
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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. 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: e60458f623e039a5ac81ff336be032d3f7e02f11afc92df2886ec1730740e712; retrieved 2026-09-22T17:23:28.354Z.