Service difficulty report · Pseu · Boeing 7378H4

Difficulty date
April 4, 2025
Submitted
April 7, 2025
Operation
Air carrier
Aircraft
N8629A
Make and model
Boeing 7378H4
Aircraft serial
36897
Aircraft time
36,900 hours, 17,920 cycles
Part
Pseu
Condition
Intermittent
Location
Zone 100
Stage of operation
AP
How discovered
O
Nature of condition
F, J
Precautionary procedure
O

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

What was found

DURING APPROACH AT FLAPS 5; EXECUTED LANDING GEAR DOWN AND FLAPS 15 BUT FLAPS REMAINED AT 5. BROUGHT FLAPS TO 5 THEN BACK TO 15. THEY REMAINED AT 5. WE EXECUTED A GO AROUND AND FLAPS RETRACTED UP WHEN COMMANDED UP. WENT THROUGH CHECKLIST FOR FLAPS DISAGREE SYMMETRICAL AND PLANNED ON FLAPS 15 LANDING. SECOND APP. FLAPS EXTENDED TO 15 NORMALLY. WE DID NOT EXTEND PAST 15.<[01] T/S AS PER FIM 27-88 TASK 813. PERFORMED FSEU BITE AS PER FIM 27-51 TASK 801. NO ACTIVE OR HISTORICAL FAULTS RECORDED. CYCLED FLAPS NUMEROUS TIMES WITH NO DISCREPANCIES. CHECKED FLAP TRANSMISSION BOX DPIS AND FOUND TO BE GOOD. PERFORMED GVI OF TORQUE TUBES AND FOUND NO DISCREPANCIES. PERFORMED PSEU BITE TEST AS PER AMM 32-09-10. NO ACTIVE OR HISTORICAL FAULTS NOTED. FOUND TO BE INTERMITTENT FAULT. OPS CHECK GOOD.

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