SDR CA981209009

Service difficulty report · Bpsu · Cndair CL6002B19

Difficulty date: December 3, 1998
Submitted: March 26, 2000
Operation: General aviation
Make and model: Cndair CL6002B19
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Bpsu
Condition: Malfunctioned
Location: Te Flap
Stage of operation: CR
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) DURING FLIGHT AT FL 370, FLAP FAIL WARNING MESSAGE CAME ON. AIRCRAFT RETURNED TO BASE. MAINTENANCE UNABLE TO DUPLICATE FAULT, FLAP ACTUATORS LUBRICATED AND AIRCRAFT TEST FLOWN, FLAPS CHECKED OK. A SECOND INCIDENT OCCURRED AND AGAIN NO FAULT FOUND. AFTER FURTHER TROUBLESHOOTING, ONE OF THE TWO BPSU IS SUSPECT CAUSING THE PROBLEM.