SDR IPXA2020073158471

Service difficulty report · Flap System · Boeing 75724APF

Difficulty date: July 29, 2020
Submitted: July 31, 2020
Operation: Air carrier
Aircraft: N430UP
Make and model: Boeing 75724APF
Aircraft serial: 25461
Aircraft time: 28,155 hours, 18,995 cycles
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Flap System
Condition: Malfunctioned
Location: Left
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

ON EXTENDING GEAR FLAPS 20 ON FINAL APPROACH, RECEIVED TE FLAP ASSYM EICAS. FLAP GUAGE SHOWED LEFT FLAP AT 15, RIGHT FLAP AT 18. EMERGENCY DECLARED. R & R THE LEFT OUTBOARD TE FLAP, OUTBOARD TEE GEARBOX IAW AMM 27-51-18-401. R & R TE FLAP SUPPORT BEARING OTBD OF NR 4 TUBE IAW AMM 27-51-022-155, & 27-51-25-422. SUCCESSFUL ADJUSTMENT TEST LEFT FLAP POSITION TRANSMITTER IAW AMM 27-58-01-501.

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