Individually Owned: 150,657
Corporate Owned: 137,281
Coeur D'alene - Pappy Boyingto Airport
Aircraft Accident/Incident Report
Hayden, Idaho 83835
Wednesday, May 14, 2014 17:20 PDT
NTSB Narrative Summary Released at Completion of Accident
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.
NTSB Probable Cause Narrative
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.
Event Information
| Type of Event | Accident |
| Event Date | 5/14/2014 |
| Event Day of the Week | Wednesday |
| Time of Event | 1720 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Hayden |
| Event State | IDAHO |
| Event Country | -- |
| Zipcode of the event site | 83835 |
| Event Date Year | 2014 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 474651N |
| Event Location Longitude | 1164742W |
| Event Location Airport | COEUR D'ALENE - PAPPY BOYINGTO |
| Event Location Nearest Airport ID | COE |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | 68 |
| Airport Elevation | 2320 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1720 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 227 |
| Weather Observation Facility ID | KCOE |
| Elevation of weather observation facility | 2320 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 24 |
| Dew Point at event time (in degress fahrenheit) | 6 |
| Wind Direction (degrees magnetic) | 270 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.23 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 33020 |
| NTSB Notification Source | FAA NWM Operations Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Aug 13 2014 3:55PM |
| User who most recently changed record | coos |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N176WW |
| NTSB Number | WPR14CA190 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | AVIAT AIRCRAFT INC |
| Aircraft Model | A 1B |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 2377 |
| Certified Max Gross Weight | 2200 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | 1 |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jun 20 2013 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 346 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | HOLMAN TERRY L |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | SPOKANE VALLEY |
| Aircraft Owner State | WA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 992111528 |
| Operator is an individual? | Yes |
| Operator Name | HOLMAN TERRY L |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | SPOKANE VALLEY |
| Operator State | WA |
| Operator Country | USA |
| Operator Zip code | 992111528 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | SFF |
| Departure City | SPOKANE |
| Departure State | WA |
| Departure Country | USA |
| Departure Time | 1620 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | KCOE |
| Destination City | COEUR D'ALENE |
| Destination State | ID |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 13 2014 3:55PM |
| User who most recently changed record | coos |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 20 |
| Runway Length | 5400 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |