WPR21LA056

NTSB accident investigation · Cessna 172 · Howe, ID · November 14, 2020

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
November 14, 2020, 11:30 local (18:30 UTC)
Place
Howe, ID · East face of Saddle Mountain
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N8278BCessna 172
Defining event
Enroute-climb to cruise: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
FAA
FAA report
20201114018059A
Case key
102297

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s failure to maintain clearance from mountainous terrain after an encounter with a downdraft, which resulted in a collision with terrain.

Findings · 5

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Terrain: mountainous/hilly terrainEnvironmental issues › Physical environment · Effect on equipmentCessna 172: 4 casesAll aircraft: 329 cases
Wind: downdraftEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentCessna 172: 3 casesAll aircraft: 178 cases
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 172: 8 casesAll aircraft: 1,310 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The student pilot reported that he was maneuvering the airplane from the south to the north on the leeward side of a ridgeline when the airplane encountered a downdraft and suddenly lost altitude. He turned the airplane to the west, then to the east in an attempt to regain altitude, but the airplane continued to descend and collided with terrain. The fuselage and both wings sustained substantial damage. The pilot reported that were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N8278B
Reported as
Cessna 172
Category
Airplane
Serial number
36078
Built
1957
Airframe hours
3,741
Engine
Continental O-300, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Jacob Rothgeb
Registered owner
Jacob Rothgeb
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 2020 · 17.2 hours before
Departed
1U2 · Mud Lake, ID
Equipment
None

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
25
Injuries
Minor
Certificate
Private
Medical
Class 2, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
23.1 total · 12.3 in this make and model · 15.5 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
4,000 ft
Temperature
32 °F

Docket · 1

The files NTSB released with the investigation on August 20, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.