SDR CALA2014051200586

Service difficulty report · Sensor · Boeing 737724

Difficulty date: May 11, 2014
Submitted: May 12, 2014
Operation: Air carrier
Aircraft: N13750
Make and model: Boeing 737724
Aircraft serial: 28941
Aircraft time: 50,515 hours, 16,846 cycles
System (JASC): 2751 · Trailing Flap Position Indicating System
Part: Sensor
Part number: S256A4042
Part serial: 2120
Condition: Defective
Location: Te Flap
Stage of operation: AP
How discovered: O
Nature of condition: N
Precautionary procedure: H, L

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

What was found

TRAILING EDGE FLAP ASYMMETRY WHEN FLAPS 1 WAS SELECTED. FSEU BITE SHOWED 27-53252, TROUBLE SHOT IAW FIM 27-59-00-810-803 FOUND NR 3 SKEW SENSOR AT FAULT. R & R NR 3 SKEW SNSOR IAW MM 27-59-01-400 -803. FUNCTION & OPERATIONS CHECK ALL NORMAL. ACFT OKAY TO CONTINUE. ROTABLE PARTS CHANGE WAS INDICATED TT 1659736, SN OFF 02120 SENSOR, FLAP, S OFF 29-2759-9-0002 2120 & ON 29-2759-9-0002 2654.