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WPR15FA049 · Cessna 170B UNDESIGNAT

28 Nov 2014 · Alzada, MT, United States

Cessna 170B UNDESIGNAT · Accident: loss of control in flight while maneuvering

From Black Hills Airport-Clyde Ice Field (SPF) to Black Hills Airport-Clyde Ice Field (SPF)

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Event

NTSB case
WPR15FA049
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
1 · all aircraft and ground
Ground fatalities
Unknown
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

Cessna 170B UNDESIGNAT

Aircraft type
Cessna 170
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
N3292A
Onboard fatalities
Unknown
Route
From Black Hills Airport-Clyde Ice Field (SPF), Spearfish, SDTo Black Hills Airport-Clyde Ice Field (SPF), Spearfish, SD
Aircraft age
About 61 years (built 1953)
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
Maneuvering · low-altitude flying
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 control in flight
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
  • Personnel issues › Task performance

Approximate · Coordinates from the NTSB case API, not marked as estimated; no uncertainty radius is established.

NTSB narrative

The private pilot departed for a local area flight. When he did not return, a search was initiated, and the wreckage was located in a saddle between two mountain peaks. There were no identified witnesses to the accident. Onsite documentation revealed that the airplane collided with the terrain in a vertical nose-down attitude. Postaccident examination of the airframe and engine did not reveal any mechanical malfunctions or failures that would have precluded normal operation.

According to a friend of the pilot, the pilot was very comfortable flying in the local area at altitudes of 150 ft above ground level or less. Given the pilot's preference for low altitude flight, it is likely that he was maneuvering around the mountainous terrain, lost control of the airplane, and did not have sufficient altitude to recover before ground impact.

Probable cause

The pilot's failure to maintain airplane control while maneuvering, which resulted in a collision with mountainous terrain.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR15FA049
Event ID
20141130X32637
Case number
WPR15FA049
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: investigation status, coordinates. Values present in the bulk record are kept.
  • The date is the UTC date the NTSB stores; the local time zone is not recorded, so the local date may differ by a day.
  • API snapshot SHA-256: f1c5ec061ae99ed151cda5925b16487238b5489f284166bbdf91b28dbe1689f8; retrieved 2026-09-14T17:29:18.486Z.