WPR14CA190 · Aviat Aircraft Inc A 1B
Aviat Aircraft Inc A 1B · Accident: loss of engine power (partial) on approach
From Felts Field (SFF) to Coeur D'Alene Airport - Pappy Boyington Field (KCOE)
Event
- NTSB case
- WPR14CA190
- 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
Aviat Aircraft Inc A 1B
- Aircraft type
- Aviat A-1
- 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
- N176WW
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Felts Field (SFF), Spokane, WATo Coeur D'Alene Airport - Pappy Boyington Field (KCOE), Coeur d'Alene, ID
- Aircraft age
- About 8 years (built 2006)
- 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
- Approach · VFR pattern base
- 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 (partial)
- 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 oper/perf/capability
- Environmental issues › Conditions/weather/phenomena
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The amphibious airplane was en route to its destination; at time of arrival the temperature was 75 degrees F and the dew point was 43 degrees F. These conditions were conducive to serious carburetor icing at glide power. The pilot stated upon entering the base leg he reduced power and began the descent for landing. While descending he reapplied power to which the engine was unresponsive. Actions by the pilot to restore power were unsuccessful and he initiated an off airport forced landing to a grass field northeast of the airport. Due to insufficient altitude the airplane struck a vehicle before the airplane stalled and impacted the ground. The airplane sustained substantial damage to the right wing and left wing lift strut. The pilot stated he was unsure whether there were any mechanical malfunctions with the engine but did believe the loss of power resulted from carburetor icing. A postaccident engine examination revealed no evidence of preimpact mechanical malfunctions or failures with the engine which would have precluded normal operation.
Probable cause
A partial loss of engine power due to encounter with weather conditions conducive to carburetor icing. Contributing the accident was the pilot's inadequate weather planning.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR14CA190
- Event ID
- 20140515X05613
- Case number
- WPR14CA190
- 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 2014-05-15.
- API snapshot SHA-256: 547b14d2305c475a718cfaac6651c0860ae4af147e8d77d116cffe3e403574ed; retrieved 2026-09-15T23:37:30.103Z.