Piper PA20 accident near Challis, Idaho, June 27, 2022
On June 27, 2022 at about 1:45 am local time, a 1953 Piper PA20, registered N1231C, was substantially damaged in an accident during initial climb near Challis, Idaho (Lower Loon Creek airport). It was a personal flight under general aviation rules (Part 91). 2 people were killed. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The pilot's turn towards rising terrain with limited climb performance and his subsequent failure to maintain clearance from terrain that resulted in an impact with terrain.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 27, 2022 · about 1:45 am local time
- Place
- Challis, Idaho · Lower Loon Creek · map
- Type
- Accident
- Injuries
- 2 people were killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper PA20 135, built 1953 · all PA20s on the register
- Registration
- N1231C · no longer on the register · serial 20-967
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
A witness at the departure airport watched the accident airplane take off and fly into a box canyon. Shortly thereafter, the witness saw a dust cloud in the same area. A friend of the accident pilot reported that they were camping in the area and had flown to the departure airport earlier in the day. The friend reported that they waited until later in the day to fly back to their camping area due to density altitude considerations. He watched the accident airplane depart to the north and then turn back toward the airport. He then departed in his airplane and flew to the camp site destination, where he expected to meet up with the accident pilot and passenger. He reported them missing when they did not arrive at the camp site. Postaccident examination of the airplane revealed no evidence of any preexisting mechanical malfunction that would have precluded normal operation. The accident site was in a box canyon about 1 1/2 miles north of the airport at an elevation of 6,240 ft above mean sea level (msl). The change in elevation from the departure airport to the accident location was about 2,040 ft. As the airplane climbed, the calculated climb performance from the departure airport to the accident site location would have likely degraded from about 477 ft per minute (fpm) to about 360 fpm. The accident is consistent with the pilot turning toward rising terrain with limited climb performance that resulted in the pilot’s failure to maintain obstacle clearance and a subsequent impact with terrain.
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
- Controlled flight into terrain or object (CFIT) during initial climb defining event
The NTSB's findings
- Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
- Environmental issues › Physical environment › Terrain › Mountainous/hilly terrain › Effect on equipment
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 800 hours in all; 35 in the last 30 days
- Last flight review: May 29, 2021
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: unk
- Injury: fatal
Passenger
- Seat: unk
- Injury: fatal
The aircraft
- Airframe total time: 1,051 hours
- Last inspection: annual inspection, May 15, 2022
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming O-320 (piston); 0 hours total
The flight
- Departed from: C53 Challis ID at 1:30 am
- Destination: 3U2 Yellow Pine ID
- Flight plan: none
Weather at the time
- Light: dusk
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 86°F (30°C), dew point 28°F (-2°C)
- Altimeter: 30.21 inHg
- Observation at 7:55 pm from KLLJ, 32 miles away
Weather report (METAR): KLLJ 270155Z AUTO 10SM CLR 30/M02 A3021 RMK AO2 SLP164 T03001022
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
11 documents, released by the NTSB on February 8, 2024. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Record of Phone Conversation (Pilot Rated Witness) | PDF, 1 page · our copy | View Download |
| 2 | Record of Phone Conversation (Witness) | PDF, 1 page · our copy | View Download |
| 3 | Summary of Findings | PDF, 4 pages · our copy | View Download |
| 4 | Airframe and Engine Exam | PDF, 8 pages · our copy | View Download |
| 5 | Airplane Owner's Handbook | PDF, 61 pages · our copy | View Download |
| 6 | Autopsy Memorandum for Record | PDF, 1 page · our copy | View Download |
| 7 | Evidence Control Form | PDF, 1 page · our copy | View Download |
| 8 | Statement of Party Representatives to NTSB Investigation | PDF, 15 pages · our copy | View Download |
| 9 | Release of Aircraft Wreckage, NTSB Form 6120.15 | PDF, 1 page · our copy | View Download |
| 10 | Pilot Toxicological Report | PDF, 1 page · our copy | View Download |
| 11 | Passenger Toxicological Report | PDF, 1 page · our copy | View Download |
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.
