SDR CA001004021

Service difficulty report · Control Unit · Boeing 767333

Difficulty date: August 19, 2000
Submitted: January 22, 2001
Operation: General aviation
Make and model: Boeing 767333
Aircraft time: 28,549 hours
Engine: Pwa PW4060
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Control Unit
Condition: Failed
Location: Te Flaps
Stage of operation: CR
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) UPON SELECTION OF FLAPS (25 FLAP) ICAS MESSAGE TE FLAP DISAGREE AND STATUS MESSAGE TE FLAP SHUTDOWN ILUMINATED. FLAP INDICATION SHOWED SLIGHTLY ASYMMETRY AT 23 DEGREES. CHENAGED FLAP SLAT ELECTRICAL UNIT (F.S.E.U.) AND TEST CARRIED OUT AS PER FAUALT ISOLATION MANUAL (F.I.M.) 27-50-00 PAGE 160, FIGURE 114C. NR 4 FLAP POSITION TRANSMITTER (M476) ADJUSTED. OPERATIONAL CHECK CARRIED OUT, CHECKED SERVICEABLE, BITE CHECKED FSEU NO FAULTS FOUND.