ANC19CA010

NTSB accident investigation · Piper PA31 · Chignik Lagoon, AK · January 21, 2019

Accident · No injuriesClass 4 · Data collectionFinal report
Date
January 21, 2019, 13:05 local (22:05 UTC)
Place
Chignik Lagoon, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N995AKPiper PA31
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Alaska Regional Office
FAA report
20190121015549A
Case key
98846

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 selection of an unsuitable runway for landing, which resulted in a loss of control and runway excursion.

Findings · 3

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.

Runway/land/takeoff/taxi surface: snow/slush/ice covered surfaceEnvironmental issues › Physical environment · Contributed to outcomePiper PA-31-350: 4 casesAll aircraft: 219 casesProbable cause
Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-31-350: 2 casesAll aircraft: 1,269 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 commercial pilot reported that he performed a fly over of the intended landing runway and determined that it was wet and muddy. During the landing roll, the braking action was minimal due to ice on the surface. The pilot determined that the airplane was not going to stop before the end of the runway, so he applied differential engine power to spin the airplane around; however, the airplane slid off the runway and impacted a snow berm resulting in the collapse of the left landing gear. The airplane sustained substantial damage to the left wing and left horizontal stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N995AK
Reported as
Piper PA31 (350)
Category
Airplane
Serial number
31-7752089
Built
1977
Airframe hours
18,237
Engines
Lycoming TIO-540-J2BD, 350 horsepower, reciprocatingLycoming LTIO-540-J2BD, 350 hp, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Lake Clark Air Inc, doing business as Lake Clark Air
Registered owner
Lake Clark Air Inc
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · January 7, 2019
Departed
PAJC · Chignik, AK
Destination
Same as departure
Airport
KCL · Chignik Lagoon, runway 04, 2,200 × 90 ft, water
Equipment
Auto-pilot, Electronic primary flight display, Stall warning system

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
28
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
January 6, 2019
Seat
Left
Restraint
3-point
Flight hours
2,259 total · 376 in this make and model · 2,063 as pilot in command · 166 in the last 90 days · 30 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
8 statute miles
Lowest ceiling
2,000 ft broken
Temperature
39 °F, dew point 37 °F
Altimeter
2937.00 inHg
Observed at
PAJC, 6 nm away

Docket · 2

The files NTSB released with the investigation on August 3, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.3 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.