Service difficulty report · Relay · Dhav DHC8102

Difficulty date
August 1, 2009
Submitted
August 9, 2009
Operation
Air carrier
Aircraft
N931HA
Make and model
Dhav DHC8102
Aircraft serial
132
Aircraft time
53,137 hours, 58,763 cycles
Part
Relay
Condition
Malfunctioned
Location
Autofeather Sys
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ON 8/1/2009 AT PHL, AUTO FEATHER DID NOT ARM DURING TAKEOFF ROLL. TORQUE INDICATED 85 PERCENT. SBY MAINTENANCE FOUND MICRO SWITCH 6121-S13 TO WORK INTERMITTENTLY. REMOVED AND REPLACED SWITCH IAW AMM 76-10-13. GROUND RAN AIRCRAFT IAW SRT MANUAL NO FIX. ISOLATED PROBLEM TO NR 2 SIDE. REMOVED AND REPLACED RELAY 6121-K5, NO FIX. REPAIRED BAD WIRE SPLICES AT 6121-513.