SDR CA960909001

Service difficulty report · Relay · Mtsbsi MU2B35

Difficulty date: September 5, 1996
Submitted: March 26, 2000
Operation: Air carrier
Make and model: Mtsbsi MU2B35
Engine: Garrtt TPE3316252M
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Relay
Part number: JAELEACH
Condition: Burnt Contacts
Location: Flap Control
Part time: 8,492 hours
Stage of operation: TO
Nature of condition: F, O
Precautionary procedure: A

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

What was found

(CAN) THE CREW SELECTED 20 DEGREES FOR FLAPS AND NOTED THE SETTING GOING TO 40 DEGREES. A CIRCUIT WAS CARRIED OUT AND THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. INSPECTION FOUND THE CONTACTS OF THE FLAP MOTOR WERE STUCK CLOSED, WHICH DROVE THE FLAPS TO 40 DEGREES AND WOULD NOT RESPOND TO THE UP COMMAND. THE RELAY WAS REPLACED AND SERVICE CHECKS OF THE FLAP SYSTEM CARRIED OUT AND THE AIRCRAFT RETURNED TO SERVICE.