SDR UIEA2026082000782

Service difficulty report · Switch · Boeing 74747UF

Difficulty date: August 20, 2026
Submitted: August 21, 2026
Operation: Air carrier
Aircraft: N409MC
Make and model: Boeing 74747UF
Aircraft serial: 30558
Aircraft time: 106,491 hours, 17,065 cycles
System (JASC): 2760 · Drag Control System
Part: Switch
Part number: 2FS551
Condition: Faulted
Location: Spoilers
Stage of operation: TO
How discovered: O
Nature of condition: F, J
Precautionary procedure: C

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

What was found

RTO MASTER WARNING AURAL "CONFIG SPOILERS". LOW SPEED RTO 65KTS, RETURNED TO GATE. R & R AUTOMATIC SPEED BRAKE ARM SWITCH IAW AMM 27-62-10/401 AND AIPC 2762-55-01 ITEM 344. PERFORMED OPS CHK, CHKD OK. PERFORMED T/O WARNING TEST IAW AMM 31-51-00-725-024, TEST PASSED. NO EICAS MESSAGES DISPLAYED. OK FOR SERVICE.

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