Service difficulty report · Jackscrew · Dhav DHC8102

Difficulty date
July 11, 2011
Submitted
September 9, 2011
Operation
Air carrier
Make and model
Dhav DHC8102
Aircraft time
49,915 hours
Engine
Pwa PW120A
Propeller
Hamstd 14SF7
Part
Jackscrew
Part number
8SC0121
Part serial
1301
Condition
Failed
Location
Te Flaps
Part time
50,410 hours
Stage of operation
DE
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

ON APPROACH WHEN FLAPS 35 SELECTED, THEY STOPPED AT 15 DEGREES. ON WALKAROUND FOLLOWING LANDING, THE CREW NOTICED THE LT INBD FLAP CAME DOWN ASYMMETRIC AND THE LOWER CORNER DUG INTO THE COMPOSITE PANEL ON THE FUSELAGE AND THE T/E OF THE FLAP WAS DAMAGED. SUBSEQUENT MX REVEALED INBD FLAP ACTUATOR SCREWJACK FAILED, PN 8SC0121, SN 1301.