Service difficulty report · Pressure Switch · Bombdr DHC8400

Difficulty date
May 30, 2019
Submitted
August 17, 2020
Operation
General aviation
Make and model
Bombdr DHC8400
Part
Pressure Switch
Part number
162660DASH1
Condition
Malfunctioned
Location
Flap System
Stage of operation
TX
How discovered
O
Nature of condition
J, F
Precautionary procedure
O

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

What was found

(CAN) FLAP POWER CAUTION LIGHT ON GROUND REPORTED BY FLIGHT CREW. FLAP CAUTION ILLUMINATED WHEN SELECTING 0 TO 5 WITH RUNNING ENGINE. FLAP STUCK AT 0 POSITION. MAINTENANCE REPLACE THE FLAP PRESSURE SWITCH DUE TO A PREVIOUS EVENT ON 25 MAY 2019 THAT WAS CORRECTED BY QRH PROCEDURE. CREW HAD SHUT DOWN BOTH ENGINES WHILE FLAPS WERE BETWEEN 10 AND 15, THEN FLAP POWER CAUTION LIGHT CAME ON. (TC# 20190607007)