Service difficulty report · Fseu · Boeing 7378H4

Difficulty date
December 28, 2022
Submitted
December 29, 2022
Operation
Air carrier
Aircraft
N8604K
Make and model
Boeing 7378H4
Aircraft serial
39883
Aircraft time
36,018 hours, 16,336 cycles
Part
Fseu
Condition
Fault Message
Location
Zn 100 Fus Lower
Stage of operation
TO
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

T.O. OUT OF MDW - WIND & TURB CAUSED FLAP OVERSPEED DURING FLAP 25 T.O. APPROX 210KTS W/ FLAP 25. WHEN WE RETRACTED FLAP TO 0 THEY WOULD NOT MOVE BELOW 2. WE MOVED FLAP HANDLE TO 5 THEN 10 THEN 0 - FLAPS WOULD NOT MOVE FROM 2. WE UTILIZED ALT FLAP SWITCH PER QRH - SET FLAP HANDLE TO 15 TO MATCH ALT FLAP SETTING AND LANDED FLAP 15.<[01] FOUND FAULT FSEU 27-51351. PERFORMED TRAILING EDGE UNCOMMANDED MOTION PROBLEM TASK TO RESTORE NORMAL FLAP OPERATION REFERENCE FIM 27-51 TASK 830;[02] PERFORMED PHASE I FLAP OVERSPEED INSPECTION REFERENCE MM 05-51-08 AND FOUND NO DISCREPANCIES.;[03] ADDED INFORMATION;[04] ADDED TOOLING<BR>P/N 101-01175<BR>S/N 00319;[05] ADDED TOOLING

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