Piper PA-18 accident near Wasilla, Alaska, July 3, 2015
On July 3, 2015 at about 9:08 pm local time, a Piper PA-18, registered N9189D, was substantially damaged in an accident during initial climb near Wasilla, Alaska (Tidewater Airport). It was a flight test under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The partial loss of engine power after takeoff 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.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 3, 2015 · about 9:08 pm local time
- Place
- Wasilla, Alaska · Tidewater Airport · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper PA-18 · all PA-18s on the register
- Registration
- N9189D · registry record · serial 186528
- Damage
- Substantial damage
- Flight
- Flight test · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The private pilot reported that he was conducting test flights around the airport after having a new engine installed on the airplane. During the first flight, he flew around the airport traffic pattern and then landed uneventfully. During the second flight, he noticed that the engine was not running smoothly. He landed the airplane and, after sumping the fuel tanks and performing an engine run-up with the mechanic who had installed the engine, he departed again. Shortly after takeoff, the airplane began sputtering and lost all power. The pilot switched fuel tanks in an attempt to restart the engine without success and then executed a forced landing, during which the airplane was substantially damaged. A postaccident examination of the airframe and engine revealed no evidence of any preimpact anomalies that would have precluded normal operation.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Loss of engine power (partial) during initial climb defining event
The NTSB's findings
- cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
Pilot
- Certificate: private
- Ratings: single-engine land
- Medical certificate: Class 3
- Seat: frt
- Injury: no injuries
The aircraft
- Maximum gross weight: 1,750 lb
- Landing gear: fixed
- Engine: Lycoming O320 (piston); 0 hours total
The flight
- Departed from: 77AK Wasilla AK
- Destination: 77AK Wasilla AK
- Flight plan: none
Weather at the time
- Light: daylight
- Wind: from 250° at 4 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 68°F (20°C), dew point 48°F (9°C)
- Altimeter: 30.14 inHg
- Observation at 9:16 pm from PAWS
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flig | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number ANC15LA044.