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Safety Recommendation Details

Safety Recommendation A-14-108
Details
Synopsis: 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.
Recommendation: TO THE FEDERAL AVIATION ADMINISTRATION: Issue guidance to pilots explaining that attitude indicators have pitch and bank indication limits, that the pitch indicating range is required to be at least ± 25°, and that, if an aircraft operates at a pitch that exceeds the indicating limits, the pitch indicator may stop and remain at the limit until the pitch no longer exceeds the limitation, or the pitch indicator may tumble.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: Talkeetna, AK, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: ANC13GA036
Accident Reports: ​Crash Following Encounter with Instrument Meteorological Conditions After Departure from Remote Landing Site Alaska Department of Public Safety Eurocopter AS350 B3, N911AA
Report #: AAR-14-03
Accident Date: 3/30/2013
Issue Date: 11/24/2014
Date Closed: 6/22/2017
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 6/22/2017
Response: We note that, on May 25, 2017, you published Safety Alert for Operators (SAFO) 17008, “Attitude Indicator Pitch Indication Limitations,” to notify aircraft operators, as recommended, of the potential operational limitations of some attitude indicators in the event of unusual attitude recovery. Publication of the SAFO satisfies Safety Recommendation A-14-108, which is classified CLOSED--ACCEPTABLE ACTION.

From: NTSB
To: FAA
Date: 4/8/2015
Response: We note that you are initiating a review of attitude indicator guidance material that will focus on indications and operating limits. Pending our review of your findings, and of your plan for developing guidance to address Safety Recommendation A-14-108, the recommendation is classified OPEN—ACCEPTABLE RESPONSE.

From: FAA
To: NTSB
Date: 1/30/2015
Response: -From Michael P. Huerta, Administrator: The FAA plans to initiate a review of attitude indicator guidance material with respect to indications and operating limits, and, if necessary, make appropriate revisions.