Service difficulty report · Drive Gear · Pilats PC1245

Difficulty date
July 10, 2001
Submitted
August 7, 2001
Operation
General aviation
Make and model
Pilats PC1245
Aircraft time
1,718 hours
Engine
Pwa PT6A67B
Propeller
Hartzl HCE4A3D
Part
Drive Gear
Part number
9787320001
Condition
Failed
Location
Te Flaps
Part time
2,126 hours, 1,899 cycles
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

(CAN) PILOTS REPORTED FLAP SYSTEM 1 AMP CIRCUIT BREAKER ON BATTERY BUS TRIPPED WHEN FLAP SELECTED DOWN. THE SYSTEM WOULD FUNCTION NORMAL IF THEY KEPT THE AIR SPEED BELOW 140 KNOTS. THE FAILURE COULD NOT BE DUPLICATED ON THE GROUND. THE FLAP POWER DRIVE UNIT WAS REPLACED. THE AIRCRAFT WAS FLOWN AND FLAPS EXTENDED AT MAX EXTENSION SPEED AND SYSTEM FUNTIONED NORMAL.