Service difficulty report · Pressure Switch · Bombdr DHC8400

Difficulty date
July 4, 2019
Submitted
August 17, 2020
Operation
General aviation
Make and model
Bombdr DHC8400
Aircraft time
7 hours
Engine
Pwc PW150A
Part
Pressure Switch
Part number
C148656
Condition
Failed
Location
Te Flaps
Component
Power Unit
Component part number
C148656
Stage of operation
NR
How discovered
O
Nature of condition
F
Precautionary procedure
A

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

What was found

(CAN) MSN 4438 THAT HAD AN ATB DUE TO FLAPS STUCK AT 5 DEGREES. DURING THE FLAP RETRACTION THE FLAPS GOT STUCK AT 5 DEGREES AND THE FLAP POWER CAUTION LIGHT ILLUMINATED. FOR THE FLAP POWER CAUTION LIGHT, BLEEDING OF THE HYDRAULIC SYSTEM WAS DONE. SEVERAL FLAP EXTENSIONS AND RETRACTIONS WERE PERFORMED WITH FLAP POWER CAUTION LIGHT ILLUMINATING. FPU PRESSURE SWITCH REPLACEMENT PERFORMED. RTS @ 1:30 PM LT JULY 5 AFTER FPU PRESSURE SWITCH REPLACEMENT. ++X++ (TC# 20190705002)