Service difficulty report · Flap System · Boeing 75724APF

Difficulty date
January 8, 2026
Submitted
January 9, 2026
Operation
Air carrier
Aircraft
N445UP
Make and model
Boeing 75724APF
Aircraft serial
27390
Aircraft time
31,740 hours, 20,658 cycles
Part
Flap System
Condition
Faulted
Stage of operation
AP
How discovered
O
Nature of condition
J, F
Precautionary procedure
A

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

What was found

DIVERSION, EMERGENCY DECLARED, TE FLAP DISAGREE EICAS ON APPROACH PERFORMED CHECKLIST AND UNABLE TO EXTEND FLAPS TO EVEN 1 DEGREE. PERFORMED FSEU BITE FIM 27-51 FT 805. CODE 305 / 328 DISPLAYED ON FAULT HISTORY LAG 0. PER FT 805 FIG 104B, CONTINUE T/S PER FIM 27-51 FT 808 FIG 105. VERIFIED NO TRIPPED INDICATIONS ON FLAP TRANSMISSIONS AND NO EVIDENCE OF BINDING OF FLAP COMPONENTS. UNABLE TO DUPLICATE THE ISSUE. REMOVED AND REPLACED RELAY K10104 PRECAUTIONARY. PERFORMED FLAP LUBE PER AMM 12-21-09. OPS CK GOOD AT THIS TIME

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