WPR13LA111

NTSB accident investigation · Cessna T210L · Boise, ID · February 3, 2013

Accident · Minor injuriesLimited investigationFinal report
Date
February 2, 2013, 19:24 local (Feb 3, 2013, 02:24 UTC)
Place
Boise, ID
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8465LCessna T210L
Defining event
Landing-flare/touchdown: Abnormal runway contact
Weather
Instrument (IMC) · Night/dark
Status
Completed · report June 22, 2015
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA-FSDO
FAA report
20130202001289A
Case key
86125

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 a proper glidepath and stabilized approach, which resulted in the airplane touching down short of the runway.

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.

Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna T210L: 2 casesAll aircraft: 809 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotCessna T210L: 1 caseAll aircraft: 1,386 casesProbable cause
Object/animal/substance: runway/taxi/approach lightEnvironmental issues › Physical environment · Effect on personnelCessna T210L: 1 caseAll aircraft: 106 cases

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 had been with the company about 2 weeks, and a pilot-rated passenger was on board the airplane to instruct the pilot on the use of the equipment associated with aerial survey work. The pilot had not previously flown this make/model airplane, so the passenger was also facilitating the pilot's understanding of the airplane and its individual characteristics. The pilot completed about 3 hours of survey work and then proceeded to the airport for an instrument landing system approach. The pilot reported that, as the airplane neared the decision height, he observed lights on the ground, which he believed were part of the airport environment, so he continued the approach. When he subsequently determined that the approach was unstable, it was too late to execute a missed approach, and he landed the airplane short of the runway. The airplane sustained substantial damage to the fuselage. The pilot and passenger safely exited the airplane.

Factual narrative

On February 2, 2013, about 1924 mountain standard time, a Cessna T210L, N8465L, collided with terrain at Boise Air Terminal, Boise, Idaho. Mat-Tech Engineering LLC was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The commercial pilot and one pilot-rated passenger sustained minor injuries; the airplane sustained substantial damage to the fuselage from impact forces. The cross-country aerial survey flight departed Twin Falls, Idaho, about 1530, with a planned destination of Boise. Instrument meteorological conditions prevailed, and an instrument flight rules (IFR) flight plan had been filed. The pilot had been with the company about 2 weeks, and the passenger was on board to instruct the pilot on the use of the equipment associated with aerial survey work. The pilot had not flown this airplane so the passenger was also facilitating understanding of the airplane and its individual characteristics. The pilot reported that the airplane had a full tank of fuel at departure, and the plan was to complete 3.5 hours of survey work; the work took about 3 hours. The pilot-rated passenger was to perform the radio calls. In addition to the automated terminal information system airport weather, the pilot asked approach control about the conditions at the airport. The pilot had apprehension about the weather, but proceeded to Boise for lack of a more suitable airport nearby that reported weather. The pilot reported that he received an IFR clearance, and was on an instrument landing system approach to runway 10R. As he neared decision height, he observed a light, which he believed was part of the airport environment, so he continued the approach. However, when he determined that the approach was unstable, it was too late to execute a missed approach, and the landing was short of the runway. The pilot and passenger exited the airplane safely under their own power. The pilot did not complete the National Transportation Safety Board Pilot/Operator Aircraft Accident/Incident Report Form 6120.1.

Aircraft

Registration
N8465L
Reported as
Cessna T210L
Category
Airplane
Serial number
21060635
Built
1975
Airframe hours
10,713
Engine
Cont Motor TSIO-520 SER, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Mar-Tech Engineering LLC
Registered owner
Mar-Tech Engineering LLC
Airworthiness certificate
Standard, Normal
Departed
TWF · Twin Falls, ID
Destination
BOI · Boise, ID
Flight plan
IFR
Airport
BOI · Boise Air Terminal, runway 10R, 9,763 × 150 ft, asphalt

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
33
Injuries
Minor
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
1,323 total · 27 in this make and model · 33 in the last 90 days · 27 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
290° at 4 knots
Visibility
0 statute miles
Lowest ceiling
100 ft indefinitevv
Temperature
30 °F, dew point 30 °F
Altimeter
30.42 inHg
Observed at
KBOI

Docket · 3

The files NTSB released with the investigation on May 13, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 129 KB 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.