ANC22LA009

NTSB accident investigation · Cessna 208 · Port Alsworth, AK · December 2, 2021

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
December 1, 2021, 18:25 local (Dec 2, 2021, 03:25 UTC)
Place
Port Alsworth, AK
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9602FCessna 208
Defining event
Approach-VFR pattern final: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Night
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
FAA report
20211201018539A
Case key
104341

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

The pilot's failure to maintain a proper approach path which resulted in landing short of the runway and impact with terrain.

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.

Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 208: 2 casesAll aircraft: 809 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCessna 208: 4 casesAll aircraft: 9,295 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 a second landing attempt at a private airport, in night conditions, the airplane descended below the glide path and landed short of the runway in an area of heavily forested terrain. The airplane sustained substantial damage to the wings and fuselage. The pilot reported that there were no pre-accident mechanical malfunctions or failures with the airplane that would have precluded normal operation, and the accident may have been prevented if the runway was equipped with a visual glide slope indicator.

Aircraft

Registration
N9602F
Reported as
Cessna 208
Category
Airplane
Serial number
20800103
Built
1985
Airframe hours
25,724
Engine
P&W Canada PT6A-6 SERIES, 550 horsepower, turbo prop
Damage
Substantial damage
Flight
Business · Part 135
Operator
Lake And Peninsula Airlines Inc
Registered owner
Lake And Peninsula Airlines Inc
Airworthiness certificate
Standard, Normal
Departed
PANO · Nondalton, AK
Destination
Same as departure
Flight plan
Company VFR
Airport
PAKX · Port Alsworth, runway 06R, 3,849 × 100 ft, gravel
Equipment
Handheld GPS, Onboard weather, Satellite tracking device, Stall warning system, ADS-B, Auto-pilot, Electronic primary flight display

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
76
Injuries
Minor
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
May 25, 2021
Seat
Left
Restraint
4-point
Flight hours
47,000 total · 9,000 in this make and model · 46,500 as pilot in command · 90 in the last 90 days · 32.9 in the last 30 days · 1.5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night
Wind
360° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
-0 °F, dew point -11 °F
Altimeter
30.28 inHg
Observed at
PAIL, 32 nm away
METAR
PAIL 022153Z 36009KT 10SM CLR M18/M24 A3028 RMK AO2 SLP260 T11781244

Docket · 2

The files NTSB released with the investigation on March 21, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.8 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.