<< >> NASA ASRS Report 1012461, May 2012

DHC8 captain describes a #2 ahrs failure after rotation and return to field. Ahrs had been written up five times in the last week.

Attributes
ACN	1012461
Time
Date	201205
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Aircraft 1
Make Model Name	Dash 8 Series Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	AHRS/ND
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Commercial
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

After rotation we had a #2 ahrs failure. We continued to climb out; and followed ATC instructions. After all appropriate checks were completed we ran the emergency checklist. We then decided it was best to return to the field. The first officer saw a bunch of flags on his instruments as well as a flag on the captain's side RMI. It probably happened because the #2 ahrs was written up 5 times within the last week and maintenance never fixed the problem correctly. No emergency was ever declared. Fix the aircraft right the first time.

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Original NASA ASRS Text

Title: DHC8 Captain describes a #2 AHRS failure after rotation and return to field. AHRS had been written up five times in the last week.

Narrative: After rotation we had a #2 AHRS failure. We continued to climb out; and followed ATC instructions. After all appropriate checks were completed we ran the emergency checklist. We then decided it was best to return to the field. The First Officer saw a bunch of flags on his instruments as well as a flag on the captain's side RMI. It probably happened because the #2 AHRS was written up 5 times within the last week and Maintenance never fixed the problem correctly. No emergency was ever declared. Fix the aircraft right the first time.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.