CircumFlightN1810P accident
NTSB WPR12LA064 · 2011-12-13 · Friday Harbor, WA
Docket — crew, injuries and powerplant
Summary
The pilot reported that about 3 to 4 minutes after takeoff, the engine lost power with no indication of engine roughness. Unable to restart the engine, the pilot made a forced landing in a field, and the airplane collided with a pole. After the accident, and prior to notification to authorities, the pilot checked the fuel system for water and found none. He then started the engine without difficulty and taxied to a secure area. A local reporting station recorded the temperature and dew point as 2 degrees Celsius and -2 degrees Celsius, respectively. Although the reported weather conditions were conducive to serious carburetor icing at cruise power, the engine was operating at a high power setting for takeoff, indicating that carburetor ice was likely not the reason for the loss of engine power.
Full narrative
On December 13, 2011, about 0900 Pacific standard time, a Piper PA-22, N1810P, experienced a loss of engine power during its initial climb near Friday Harbor, Washington. During the pilot’s subsequent forced landing in a field, the airplane collided with a pole and was substantially damaged. The commercial pilot was not injured. The flight was performed under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed, and no flight plan was filed. The pilot had borrowed the airplane from a private individual for a business flight that originated from Friday Harbor, about 0856.
The pilot reported that all engine power was suddenly lost 3 to 4 minutes after takeoff. There was no indication of engine roughness prior to the complete loss of engine power. Unable to restart the engine, the pilot made a forced landing in the field.
Prior to notifying the National Transportation Safety Board investigator-in-charge, the pilot examined the airplane and found that there was substantial damage to the left elevator. No water was found in the fuel tanks or in the gascolator. The engine was started with no difficulty and the airplane was taxied to a secure area. The examination did not reveal any mechanical failure or malfunction that would have precluded normal operation.
Weather conditions recorded at Friday Harbor Airport (FHR), located about 2 miles northeast of the accident site, at 0853, were: wind calm; clear sky; visibility 10 miles; temperature 2 degrees Celsius; dew point -2 degrees Celsius and altimeter 30.07. According to the Federal Aviation Administration Special Airworthiness Information Bulletin, entitled Carburetor Icing Prevention, the temperature and dew point were conducive to the formation of serious icing at cruise power.
Probable cause
A total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. The National Transportation Safety Board determined the probable cause of this accident.
Circumstances
- Event type
- Accident
- Highest injury
- None
- Weather conditions
- Visual Meteorological Cond
- Light condition
- Day
- Sky condition
- OVC
- Ceiling (ft)
- 7500
- Visibility (sm)
- 15
- Wind direction
- 0
- Temperature (F)
- 36
- Distance from field
- 0.0
Aircraft
| Registration | Make | Model | Damage | FAR part |
|---|---|---|---|---|
| N1810P | — | — | SUBS | 091 |
Sequence of events
| # | Occurrence | Phase |
|---|---|---|
| 1 | Enroute-cruise Loss of engine power (total) defining | Climb |
| 2 | Enroute-descent Off-field or emergency landing | Climb |
| 3 | Landing-landing roll Collision with terr/obj (non-CFIT) | Cruise |
Findings
| Finding | |
|---|---|
| Not determined-Not determined-(general)-(general)-Unknown/Not determined | cause |