SDR ASMF201507004

Service difficulty report · Flap System · Boeing 73781Q

Difficulty date: May 20, 2015
Submitted: July 23, 2015
Operation: Air carrier
Aircraft: N520AM
Make and model: Boeing 73781Q
Aircraft serial: 29052
Aircraft time: 46,731 hours, 16,797 cycles
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Flap System
Condition: Malfunctioned
Location: Te Flaps
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: B

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

What was found

CAPTAIN REPORTED THAT DURING APPROACH, TE FLAP DISAGREE WITH FLAPS INDICATOR STAYING IN 2 UNITS & DECLARED AN EMERGENCY. ACCOMPLISHED WITH THE PROCEDURE TO EXTEND FLAPS TO 30 UNITS USING ALTERNATE FLAP EXTENSION. PERFORMED BITE TO FSEU IAW FIM 27-51 TASK 830 PROCEDURE, SHOWING FAILURE CODE 21-51351 & THE FIM 27-51 TASK 803 PROCEDURE. THE CB`S A8 & A9, DC1 & DC2 IN P6 2 WERE RESEATED IAW AMM 27-51-00, TESTED CORRECT.

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