SDR SWAA2026041388288

Service difficulty report · Fseu · Boeing 73776N

Difficulty date: April 11, 2026
Submitted: April 13, 2026
Operation: Air carrier
Aircraft: N7885A
Make and model: Boeing 73776N
Aircraft serial: 33379
Aircraft time: 71,965 hours, 37,330 cycles
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Fseu
Condition: Faulty
Location: Zone 100
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

LE FLAP TRANSIT LIGHT ILLUMINATED DURING APPROACH.<[01] FOLLOWED FIM 27-88 TASK 820 UP TO STEP F SUBSTEP (D) AND REPLACED THE FSEU IAW AMM 27-51-01; OPC GOOD.;[02] FOLLOWED FIM 27-88 TASK 820 UP TO STEP F SUBSTEP (D) AND REPLACED THE FSEU IAW AMM 27-51-01; OPC GOOD. RNR FLAP #4 RETRACT SENSOR S174 IAW AMM 27-88-11; OPC GOOD.;[03] USED SENSOR S174 PN 1-899-29FS BN: 719321<BR>USED TORQUE WRENCH T000014 SN:801561

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