SDR HNAA9698973

Service difficulty report · Air Distr · Dhav DHC8201

Difficulty date: October 30, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N989HA
Make and model: Dhav DHC8201
Aircraft serial: 427
System (JASC): 2120 · Air Distribution System
Part: Air Distr
Condition: Smoking
Location: Cockpit
Stage of operation: CR
Nature of condition: B
Precautionary procedure: K

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

What was found

FLT 3448 - TPA-TLH - CREW REPORTS SMOKE IN COCKPIT IN CRUISE WHEN REDUCING POWER TO 20 PERCENT. WHEN BLEEDS ARE TURNED OFF, NO SMOKE IS VISIBLE. THE AIRCRAFT CONTINUED ON TO TLH AND LANDED WITHOUT INCIDENT. CHECKED OIL LEVEL, OIL LEVELS GOOD. OIL PRESSURES ON BOTH ENGINES WERE FOUND NORMAL. VISUALLY INSPECTED AIR SWITCHING VALVES ON BOTH ENGINES, VALVES CHECKED GOOD. COULD NOT DUPLICATE. (M)