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Safety Recommendation Details

Safety Recommendation A-16-005
Details
Synopsis: On March 11, 2016, the National Transportation Safety Board (NTSB) adopted our safety recommendation report concerning a June 5, 2015, incident in which United Express flight 4776, a Bombardier DHC-8-202 airplane, experienced an in-flight fire at the right windshield terminal block while on approach to Bradley International Airport, Windsor Locks, Connecticut.
Recommendation: TO BOMBARDIER, INC.: Revise the Bombardier DHC-8 windshield maintenance task cards to incorporate more specific inspection tasks that focus on the degradation of windshield components known to occur over time.
Original recommendation transmittal letter: PDF
Overall Status: Open - Acceptable Response
Mode: Aviation
Location: Windsor Locks, CT, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: ENG15IA024
Accident Reports: Safety Recommendation Report: Preventing Windshield Arcing, Smoke, and Fire on Bombardier DHC-8 Airplanes
Report #: ASR-16-001
Accident Date: 6/5/2015
Issue Date: 4/12/2016
Date Closed:
Addressee(s) and Addressee Status: Bombardier, Inc. (Open - Acceptable Response)
Keyword(s):

Safety Recommendation History
From: NTSB
To: Bombardier, Inc.
Date: 7/17/2018
Response: We note that you are creating a new, specific task card to ensure the electrical connections on the terminal block are retorqued, not just checked for tightness. Pending completion of revisions to the DHC-8 windshield maintenance task cards, Safety Recommendation A-16-5 remains classified OPEN--ACCEPTABLE RESPONSE.

From: Bombardier, Inc.
To: NTSB
Date: 6/12/2018
Response: -From David Fisher, Director, Bombardier Commercial Aircraft, ASIO (Air Safety Investigation Office): A-16-5 “Revise the Bombardier DHC-8 windshield maintenance task cards to incorporate more specific inspection tasks that focus on the degradation of windshield components known to occur over time. You reported that the Bombardier DHC-8 windshield maintenance task card has been revised to include an inspection of the moisture seal and terminal blocks. We note, however, that only the tasks for the moisture seal have changed. Although we consider these revisions an improvement, to fully satisfy this recommendation, you will also need to incorporate more specific inspection tasks for the terminal blocks. Pending your completion of this final action, Safety Recommendation A-16-5 is classified “Open—Acceptable Response.” Bombardier Response: The current task card is performed using the EWIS inspection intervals and procedures, therefore Bombardier is creating a new specific task card to ensure re-torqueing is performed on the terminal block, and not just checked for tightness.

From: NTSB
To: Bombardier, Inc.
Date: 4/20/2018
Response: You reported that the Bombardier DHC-8 windshield maintenance task card has been revised to include an inspection of the moisture seal and terminal blocks. We note, however, that only the tasks for the moisture seal have changed. Although we consider these revisions an improvement, to fully satisfy this recommendation, you will also need to incorporate more specific inspection tasks for the terminal blocks. Pending your completion of this final action, Safety Recommendation A-16-5 is classified OPEN--ACCEPTABLE RESPONSE.

From: Bombardier, Inc.
To: NTSB
Date: 12/14/2017
Response: -From David Fisher, Manager, Air Safety Investigations Office (ASIO): BA Safety Action Taken: Maintenance tasks have been revised to inspect the terminal blocks and moisture seals of the Windshield. This has been mandated by TC Airworthiness Directive, CF-2017-25. (AD attached)

From: NTSB
To: Bombardier, Inc.
Date: 10/4/2017
Response: We are interested in knowing whether and how our recommendations are implemented, both to ensure that the traveling public is provided the highest level of safety and to identify creative solutions that might be shared with others. We normally expect actions to address our recommendations to be completed within 3 to 5 years, and we have yet to hear from you regarding your progress toward addressing these recommendations. We would appreciate receiving a response within 90 days indicating any actions you have taken or plan to take to implement these recommendations; until then, they will retain their current classification of OPEN—AWAIT RESPONSE. For additional background information about these safety recommendations, please refer to Safety Recommendation Report 16-01, Preventing Windshield Arcing, Smoke, and Fire on Bombardier DHC-8 Airplanes. Please update us at correspondence@ntsb.gov regarding your actions to address Safety Recommendations A-16-3 through -8, and do not submit both an electronic and a hard copy of the same response.