ANC12CA036

NTSB accident investigation · Short Bros. & Harland SC7 Series 3 · Chefornak, AK · May 3, 2012

Accident · No injuriesData collectionFinal report
Date
May 3, 2012, 10:40 local (18:40 UTC)
Place
Chefornak, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1906Short Bros. & Harland SC7 Series 3
Defining event
Landing-flare/touchdown: Abnormal runway contact
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2012
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA FSDO-03
Case key
83557

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 misidentification of a nearby snow-covered road as the snow-covered runway in flat light conditions.

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.

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 was landing on a narrow gravel runway adjacent to a gravel road. He reported that both the road and runway were covered with snow and that flat light conditions made it difficult to discern between the two surfaces. He inadvertently landed to the left of the runway on the rough road, which resulted in structural damage to the nose landing gear bulkhead.

Factual narrative

The pilot was landing on a narrow gravel runway adjacent to a gravel road. He reported that both the road and runway were covered with snow, and that flat light conditions made it difficult to discern between the two surfaces. He inadvertently landed to the left of the runway on the rough road, which resulted in structural damage to the nose landing gear bulkhead.

Aircraft

Registration
N1906
Reported as
Short Bros. & Harland SC7 Series 3
Category
Airplane
Serial number
SH1906
Airframe hours
9,970
Engines
Honeywell TPE331-2-201A, 750 horsepower, turbo propHoneywell TPE331-2-201A, 750 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 135
Operator
Ryan Air Inc
Registered owner
Ryan Air Inc
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · April 2, 2012
Departed
PABE · Bethel, AK
Destination
PACK · Chefornak, AK
Flight plan
Company VFR
Airport
PACK · Chefornak, runway 34, 2,500 × 28 ft, snow

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
49
Injuries
None
Certificates
Commercial, Airline transport
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
October 20, 2011
Seat
Left
Flight hours
19,544 total · 4,682 in this make and model · 18,942 as pilot in command · 194 in the last 90 days · 91 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 3 knots
Visibility
10 statute miles
Lowest ceiling
3,000 ft overcast
Temperature
30 °F, dew point 28 °F
Altimeter
29.84 inHg
Observed at
PACK

Docket · 1

The files NTSB released with the investigation on July 27, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.8 MB in all.