Service difficulty report · Pressure Switch · Dhav DHC8311

Difficulty date
March 26, 2016
Submitted
March 29, 2016
Operation
Air carrier
Aircraft
N335EN
Make and model
Dhav DHC8311
Aircraft serial
375
Aircraft time
49 hours, 54,099 cycles
Part
Pressure Switch
Part number
7821004
Part serial
4224
Condition
Inoperative
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

DURING FLIGHT, NR 1 TORQUE INDICATIONS FLUCTUATING PLUS, MINUS 5 PCT WITH NR 1 BLEED HOT CT LIGHT ILLUMINATION. SELECTED NR 1 BLEED OFF AND NR 2 TORQUE INDICATOR FLUCTUATING, 5 PCT WITH NR 2 BLEED HOT CT LIGHT ILLUMINATED, SEL NR 2 BLEED OFF. TORQUE INDICATOR NORMAL AND CT LIGHTS EXTINGUISHED. R & R BOTH AIR MOD BLEED AIR PSI SWITCHES, GROUND RAN ACFT, BLEEDS OPS CHECK GOOD IN AIR AND GROUND MOD. NO BLEED HOT LIGHTS OR TORQUE FLUCTUATIONS NOTED OK FOR SERVICE.