Service difficulty report · Actuator · Doug DC931

Difficulty date
February 12, 2009
Submitted
February 18, 2009
Operation
Air carrier
Aircraft
N8929E
Make and model
Doug DC931
Aircraft serial
45866
Part
Actuator
Condition
Damaged
Location
Le Slat
Stage of operation
AP
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, AFTER FLIGHT CREW CONFIGURED THE ACFT FOR LANDING, THE AMBER "SLAT DISAGREEMENT" LIGHT ILLUMINATED, THE BLUE "SLAT EXTEND" LIGHT DID NOT COME ON, AND AN UNCOMMANDED ROLL OF THE ACFT TO THE RT OCCURRED. THE SLATS WERE RETRACTED WITHOUT DIFFICULTY, THE FLAPS EXTENDED NORMALLY, AND THE ACFT COMPLETED A NO-SLAT LANDING WITHOUT FURTHER DIFFICULTIES. MX FUNCTIONALLY CHECKED THE SYS AND FOUND THAT THE LT SLAT ACTUATOR ROD-END WAS BROKEN OFF. THE ACTUATOR WAS REPLACED, A LEAK CHECK OF THE AIRFOIL ANTI-ICE SYSTEM, AND FUNCTIONAL CHECKS OF THE SLAT AND FLAP SYS PERFORMED AND THE ACFT RETURNED TO SERVICE. (K)

More about the Doug DC-9-31