WPR21LA164

NTSB accident investigation · Cessna 208B · Fairbanks, AK · April 3, 2021

Accident · No injuriesClass 3 · LimitedFinal report
Date
April 3, 2021, 13:15 local (21:15 UTC)
Place
Fairbanks, AK · Runway
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Unknown
Aircraft
N215MCCessna 208B
Defining event
Unknown: Loss of engine power (partial)
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20210403001369A
Case key
102940

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

On this page

Probable cause

A partial loss of engine power for reasons that could not be determined based on available evidence.

Findings · 2

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.

Power plantAircraft › Aircraft power plant · Unknown/Not determinedCessna 208B: 1 caseAll aircraft: 198 casesProbable cause
Not determinedNot determined › Not determined · Unknown/Not determinedCessna 208B: 2 casesAll aircraft: 2,247 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 pilot reported that during the takeoff climb, he retracted the flaps, and the engine began to run rough. The pilot elected to abort the landing on the remaining runway. The airplane descended rapidly with the decreased airspeed and subsequently landed hard, sustaining substantial damage. The passengers reported that the airplane bounced three to four times when it landed. Ground witnesses reported heavy snowfall at the time the airplane took off. Postaccident examination of the engine revealed no evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation. The reason for the loss of engine power could not be determined based on the available evidence.

Factual narrative

On April 03, 2021, at 1315 hours Alaska daylight time, a Cessna 208B, N215MC, was substantially damaged when it was involved in an accident near Fairbanks, Alaska. The pilot and four passengers were not injured. The airplane was operated by as a Title 14 Code of Federal Regulations Part 135 commercial flight. The pilot reported that during the takeoff roll, the engine gauges “were in the green” and “everything seemed normal.” During climbout, he retracted the flaps slowly, and while retracting the last 10°, the engine began to run rough. He looked at the torque meter and saw that it was shaking and starting to drop. He knew that he was already at or past the halfway point of the runway length and with 1 mile visibility he pulled the power lever back and pointed the nose down to land. The pilot stated that with no power the airplane was losing airspeed and during the descent he tried to add flaps, but the airplane was descending rapidly and subsequently landed hard. After the airplane came to a stop, the pilot taxied the airplane off the runway. The passengers stated that after liftoff, the engine sputtered and the airplane touched back down on the runway and bounced three or four times. Ground witnesses reported heavy snowfall at the time the airplane took off. Postaccident examination of the airplane revealed that the left main landing gear was bent outward. The lower fuselage was substantially damaged. Examination of the engine and testing of a fuel sample found no evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation.

Aircraft

Registration
N215MC
Reported as
Cessna 208B
Category
Airplane
Serial number
208B0730
Built
1999
Airframe hours
17,927.2
Engine
P&W Canada PT6A-114A, 650 horsepower, turbo prop
Damage
Substantial damage
Flight
Business · Part 135
Operator
Tatonduk Outfitters Ltd DBA, doing business as Everts Air Alaska
Registered owner
Tatonduk Outfitters Ltd DBA
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · February 5, 2021
Destination
AGA · Galena, AK
Flight plan
IFR
Airport
AFA · Fairbanks Intl, runway 02L, 11,800 × 150 ft, asphalt
Equipment
Unknown

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
None
Certificate
Commercial
Airplane ratings
Multi-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
October 1, 2020
Seat
Left
Restraint
3-point
Flight hours
1,727.5 total · 649.8 in this make and model · 688 as pilot in command · 251.3 in the last 90 days · 86 in the last 30 days

Weather

Conditions
Instrument (IMC) · Day
Wind
20° at 4 knots
Visibility
1 statute miles
Lowest ceiling
1,700 ft broken
Temperature
21 °F, dew point 16 °F
Altimeter
29.82 inHg
Observed at
PAFA, 1 nm away
METAR
METAR PAFA 032053Z 02004KT 1SM R02L/4500VP6000FT -SN BR BKN017 OVC028 M06/M09 A2982 RMK AO2 TWR VIS 2 SLP108 P0002 60006 T10611089 50003=

Docket · 6

The files NTSB released with the investigation on February 28, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.6 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.