ANC13GA036

NTSB accident investigation · Eurocopter AS350 · Talkeetna, AK · March 31, 2013

Accident · FatalClass 1Final report
Date
March 30, 2013, 23:20 local (Mar 31, 2013, 07:20 UTC)
Place
Talkeetna, AK
Injuries
3 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N911AAEurocopter AS350
Defining event
Maneuvering-low-alt flying: Loss of control in flight
Weather
Instrument (IMC) · Night
Status
Completed · report January 28, 2015
Report
Board-adopted at Board Meeting
Investigation class
Class 1
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration, Alaska Department of Public Safety, Turbomeca, American Eurocopter
Safety recommendations
Yes
FAA report
20130330006199A
Case key
86550

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 decision to continue flight under visual flight rules into deteriorating weather conditions, which resulted in the pilot's spatial disorientation and loss of control. Also causal was the Alaska Department of Public Safety's punitive culture and inadequate safety management, which prevented the organization from identifying and correcting latent deficiencies in risk management and pilot training. Contributing to the accident was the pilot's exceptionally high motivation to complete search and rescue missions, which increased his risk tolerance and adversely affected his decision-making.

Findings · 12

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.

Ceiling/visibility/precip: obscurationEnvironmental issues › Conditions/weather/phenomena · Effect on operationEurocopter AS 350 B3: 2 casesAll aircraft: 45 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotEurocopter AS 350 B3: 14 casesAll aircraft: 9,295 casesProbable cause
Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedEurocopter AS 350 B3: 4 casesAll aircraft: 1,269 casesProbable cause
Culture: safetyOrganizational issues › Management · Other government Eurocopter AS 350 B3: 1 caseAll aircraft: 11 casesProbable cause
Oversight: oversight of operationOrganizational issues › Support/oversight/monitoring · Other government Eurocopter AS 350 B3: 2 casesAll aircraft: 61 casesProbable cause
TrainingOrganizational issues › Support/oversight/monitoring · OperatorEurocopter AS 350 B3: 2 casesAll aircraft: 26 cases
Safety programsOrganizational issues › Support/oversight/monitoring · OperatorEurocopter AS 350 B3: 1 caseAll aircraft: 7 cases
Experience/qualifications: total experiencePersonnel issues › Experience/knowledge · Flt operations/dispatcherEurocopter AS 350 B3: 1 caseAll aircraft: 126 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 Safety Board's full report is available at http://www.ntsb.gov/investigations/AccidentReports/Pages/aviation.aspx. The Aircraft Accident Report number is NTSB/AAR-14/03. On March 30, 2013, at 2320 Alaska daylight time, a Eurocopter AS350 B3 helicopter, N911AA, impacted terrain while maneuvering during a search and rescue (SAR) flight near Talkeetna, Alaska. The airline transport pilot, an Alaska state trooper serving as a flight observer for the pilot, and a stranded snowmobiler who had requested rescue were killed, and the helicopter was destroyed by impact and postcrash fire. The helicopter was registered to and operated by the Alaska Department of Public Safety (DPS) as a public aircraft operations flight under 14 Code of Federal Regulations Part 91. Instrument meteorological conditions (IMC) prevailed in the area at the time of the accident. The flight originated at 2313 from a frozen pond near the snowmobiler's rescue location and was destined for an off-airport location about 16 mi south.

Factual narrative

The Safety Board's full report is available at http://www.ntsb.gov/investigations/AccidentReports/Pages/aviation.aspx. The Aircraft Accident Report number is NTSB/AAR-14/03. On March 30, 2013, at 2320 Alaska daylight time, a Eurocopter AS350 B3 helicopter, N911AA, impacted terrain while maneuvering during a search and rescue (SAR) flight near Talkeetna, Alaska. The airline transport pilot, an Alaska state trooper serving as a flight observer for the pilot, and a stranded snowmobiler who had requested rescue were killed, and the helicopter was destroyed by impact and postcrash fire. The helicopter was registered to and operated by the Alaska Department of Public Safety (DPS) as a public aircraft operations flight under 14 Code of Federal Regulations Part 91. Instrument meteorological conditions (IMC) prevailed in the area at the time of the accident. The flight originated at 2313 from a frozen pond near the snowmobiler's rescue location and was destined for an off-airport location about 16 mi south.

Aircraft

Registration
N911AA
Reported as
Eurocopter AS350
Category
Helicopter
Serial number
3611
Airframe hours
2,518
Engine
Arriel 2B, 843 horsepower, turbo shaft
Damage
Destroyed
Fire
On-Ground
Flight
Public aircraft - state · Public use
Operator
State of Alaska
Registered owner
State of Alaska
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · March 17, 2013
Departed
Talkeetna, AK
Destination
Talkeetna, AK

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
55
Injuries
Fatal
Certificates
Airline transport, Commercial, Flight instructor
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, With waivers/limitations
Last flight review
March 18, 2013
Seat
Right
Toxicology
Performed
Flight hours
10,693 total · 3,350 in this make and model

Weather

Conditions
Instrument (IMC) · Night
Wind
Calm
Visibility
7 statute miles
Lowest ceiling
2,400 ft overcast
Temperature
34 °F, dew point 34 °F
Observed at
PATK

Docket · 117

The files NTSB released with the investigation on February 3, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports.

Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1Item 1 · .PDF · 3.4 MBMeteorology 5 - Factual Report of Group ChairmanItem 2 · .PDF · 3.0 MBMeteorology 5 - Attachment 1Item 3 · .PDF · 65 KBNon-Volatile Memory Devices - Specialist's Factual ReportItem 4 · .PDF · 2.4 MBOperations 2 - Factual Report of Group Chairman (with 8 embedded images)Item 5 · .PDF · 8 photos · 2.7 MBOperations 2 - Attachment 1 - List of Persons InterviewedItem 6 · .PDF · 33 KBOperations 2 - Attachment 2 - Timeline of EventsItem 7 · .PDF · 104 KBOperations 2 - Attachment 3 - Snowmobiler's Cell Phone RecordsItem 8 · .PDF · 239 KBOperations 2 - Attachment 4 - Pilot's Notepad ExcerptItem 9 · .PDF · 51 KBOperations 2 - Attachment 5 - Pilot's SAR Reports Oct 2012 to Mar 2013Item 10 · .PDF · 3.2 MBAirworthiness Factual Report of Group ChairmanItem 11 · .PDF · 8 photos · 886 KBOperations 2 - Attachment 6 - Pilot's ResumeItem 12 · .PDF · 76 KBOperations 2 - Attachment 7 - Pilot's military recordsItem 13 · .PDF · 573 KBOperations 2 - Attachment 8 - Excerpts from Pilot's Performance EvaluationsItem 14 · .PDF · 626 KBOperations 2 - Attachment 9 - Excerpts from pilot's messages of appreciationItem 15 · .PDF · 280 KBOperations 2 - Attachment 10 - Excerpts from Pilot's CommendationsItem 16 · .PDF · 457 KBOperations 2 - Attachment 11 - Pilot's Training and Check Flights 2001-2013Item 17 · .PDF · 2.0 MBOperations 2 - Attachment 12 - Quote for NVG trainingItem 18 · .PDF · 225 KBOperations 2 - Attachment 13 - Excerpts from Pilot's LogbooksItem 19 · .PDF · 10.9 MBOperations 2 - Attachment 14 - Pilot's Flight Time with DPSItem 20 · .PDF · 356 KBOperations 2 - Attachment 15A - Helicopter Log Sheets Oct 2012 to Mar 2013Item 21 · .PDF · 2.3 MBOperations 2 - Attachment 15B - Pilot's NVG currency form dated March 15, 2013Item 22 · .PDF · 60 KBOperations 2 - Attachment 16 - DPS memorandum on 2006 accidentItem 23 · .PDF · 257 KBOperations 2 - Attachment 17 - DPS memorandum of warning to pilot following 2006 accidentItem 24 · .PDF · 109 KBOnboard Image Recorder 12 - Factual Report of Group ChairmanItem 25 · .PDF · 982 KBOperations 2 - Attachment 18 - DPS report on 2009 over speed incidentItem 26 · .PDF · 921 KBOperations 2 - Attachment 19 - Excerpt from Turbomeca report on 2009 over speed incidentItem 27 · .PDF · 98 KBOperations 2 - Attachment 20 - Eurocopter information on GOV failure proceduresItem 28 · .PDF · 3.5 MBOperations 2 - Attachment 21 - Pilot's statement about 2011 over torque incidentItem 29 · .PDF · 108 KBOperations 2 - Attachment 22 - DPS memorandum addressing 2011 over torque incidentItem 30 · .PDF · 105 KBOperations 2 - Attachment 23 - Pilot's time sheet for March 16-31, 2013Item 31 · .PDF · 72 KBOperations 2 - Attachment 24 - Pilot's pay for calendar year 2012Item 32 · .PDF · 48 KBOperations 2 - Attachment 25 - DPS memorandums concerning pilot discussions with lead mechanicItem 33 · .PDF · 111 KBOperations 2 - Attachment 26 - Form 337 showing installation of attitude indicatorItem 34 · .PDF · 379 KBOperations 2 - Attachment 27 - Email from L3 and excerpts from attitude indicator installation and operation manualItem 35 · .PDF · 434 KBOperations 2 - Attachment 28 - TSO-C4c Bank and Pitch InstrumentsItem 36 · .PDF · 668 KBOperations 2 - Attachment 29 - Turn and bank indicator discrepancy documentation from 2004Item 37 · .PDF · 173 KBOperations 2 - Attachment 30 - Weight and balance documents and calculationItem 38 · .PDF · 262 KBOperations 2 - Attachment 31 - NVG inspection record dated March 22, 2013Item 39 · .PDF · 104 KBOperations 2 - Attachment 32 - Pilot's toxicology reportItem 40 · .PDF · 64 KBOperations 2 - Attachment 33 - Excerpts from FY2014 governor's budget document related to aircraft sectionItem 41 · .PDF · 284 KBOperations 2 - Attachment 34 - Aircraft section training budget FY 2010 to 2013Item 42 · .PDF · 435 KBOperations 2 - Attachment 35 - Excerpts from DPS Aircraft Operating ManualItem 43 · .PDF · 2.3 MBOperations 2 - Attachment 36 - Email regarding pilot's NVG minimumsItem 44 · .PDF · 17 KBOperations 2 - Attachment 37 - Medallion Foundation program informationItem 45 · .PDF · 522 KBOperations 2 - Attachment 38 - DPS Aircraft Section safety policy statementItem 46 · .PDF · 128 KBOperations 2 - Attachment 39 - State of Alaska DPS accidents 2000-2013Item 47 · .PDF · 85 KBOperations 2 - Attachment 40 - Alaska DPS flight hours for fiscal years 2000-2013Item 48 · .PDF · 1.5 MBOperations 2 - Attachment 41 - Excerpts from FY2014 Governor's Budget Document Related to SARItem 49 · .PDF · 283 KBOperations 2 - Attachment 42 - FAA Operations Specification A021Item 50 · .PDF · 30 KBOperations 2 - Interview 1 - Record of Interview of Pilot's WifeItem 51 · .PDF · 134 KBOperations 2 - Interview 2 - Transcript of First Interview of Aircraft Section CommanderItem 52 · .PDF · 197 KBOperations 2 - Interview 3 - Transcript of Interview of Former AST SAR CoordinatorItem 53 · .PDF · 251 KBOperations 2 - Interview 4 - Transcript of Interview of Lead MechanicItem 54 · .PDF · 268 KBOperations 2 - Interview 5 - Transcript of Interview of Shop ForemanItem 55 · .PDF · 201 KBOperations 2 - Interview 6 - Transcript of Interview of Former Aircraft Section PilotItem 56 · .PDF · 251 KBOperations 2 - Interview 7 - Transcript of Interview of Former Aircraft Section Supervisor 2004-2005Item 57 · .PDF · 209 KBOperations 2 - Interview 8 - Transcript of Second Interview of Aircraft Section CommanderItem 58 · .PDF · 255 KBOperations 2 - Interview 9 - Transcript of Interview of AST Trooper PilotItem 59 · .PDF · 205 KBOperations 2 - Interview 10 - Transcript of Interview of Former Helo-1 Relief PilotItem 60 · .PDF · 389 KB
All 117 files on NTSB’s docket

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N911AA · 1

Matched to the same aircraft by N-number and date.