Dhc-8-100 captain experienced a #1 hydraulic fluid hot caution light after taking the runway and tax...

Attributes
ACN	1374025
Time
Date	201607
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Dash 8-100
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Component
Aircraft Component	Electrical Wiring & Connectors
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 90 Flight Crew Type 3700
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

We were cleared onto the runway and as I taxied the aircraft into position I saw the master caution blinking. Upon looking up at the caution panel I saw; and the first officer confirmed; that the #1 hydraulic fluid hot caution light was illuminated. We then advised ATC we needed to cancel our takeoff clearance and taxi off the runway. We were cleared to turn off so we could run the checklist. After running the checklist I decided to give dispatch a call and talk with maintenance. They told me that the aircraft needed an inspection so return to the gate. After returning to the gate and all passengers deplaned I went outside to see what maintenance had found. One mechanic said it looked like numerous wiring and harnesses were burned; but I'm not too sure if it was related to the caution light we received.

Original NASA ASRS Text

Title: DHC-8-100 Captain experienced a #1 HYD FLUID HOT caution light after taking the runway and taxied clear. The aircraft returned to the gate where Maintenance found wiring issues in addition to the hydraulic problem.

Narrative: We were cleared onto the runway and as I taxied the aircraft into position I saw the master caution blinking. Upon looking up at the caution panel I saw; and the FO confirmed; that the #1 HYD FLUID HOT caution light was illuminated. We then advised ATC we needed to cancel our takeoff clearance and taxi off the runway. We were cleared to turn off so we could run the checklist. After running the checklist I decided to give Dispatch a call and talk with maintenance. They told me that the aircraft needed an inspection so return to the gate. After returning to the gate and all passengers deplaned I went outside to see what maintenance had found. One mechanic said it looked like numerous wiring and harnesses were burned; but I'm not too sure if it was related to the caution light we received.

Data retrieved from NASA's ASRS site 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.

Dhc-8-100 captain experienced a #1 hydraulic fluid hot caution light after taking the runway and taxied clear. The aircraft returned to the gate where maintenance found wiring issues in addition to the hydraulic problem.