Service difficulty report · Flap · Boeing 737900ER

Difficulty date
March 17, 2023
Submitted
March 17, 2023
Operation
Air carrier
Aircraft
N37468
Make and model
Boeing 737900ER
Aircraft serial
32836
Aircraft time
30,580 hours, 10,992 cycles
Part
Flap
Part number
NA
Condition
Unknown
Location
Flaps
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
B

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

What was found

FLAPS WOULDN/T MOVE WHEN SELECTED. RAN NON-NORMAL AND LED/S EXT ENDED W/FL AP ASYMETRY. BITE CHECKED FSEU FOUND MAINTENANCE MSG 27-53279L AND 27-51417 BITE CHECKED FSEU FOUND MAINTENANCE MSG 27-53279L AND 27-51417 LOWERED FLAP BY ALTERNATE PROCEDURE IMAGE UPDATE FLAGING CONNECTOR D728B PIN A10,A11, AND A12 .FOUND CB AT P6-2 FLAGING CONNECTOR D728B PIN A10,A11, AND A12 .FOUND CB AT P6-2 A12 POPED TRIED TO RESET POPED AGAIN. A12 POPED TRIED TO RESET POPED AGAIN. C/B A12. NO FIX. PERFORMED FIM 27-51 TASK 811. AND ISOLATED FLAP CONTROL LEVER UNABLE TO PERFORM FIM 21-51 TASK 822 FOR MM MSG 27-53279 DUE TO FOUND SHORT TO GROUND BETWEEN CONNECTORS D11818 PIN 6 AND D11816 SENSOR. C/B A12 STILL POPS OPEN. ALSO ISOLATED FSEU UNIT, FLAP C/B A12 NEEDS TO BE CLOSED. PIN 2. FOUND DAMAGED WIRE 2009R-20 AT APROX 22 INCHES INBD FROM INDICATOR GAUGE, AND LH FLAP POSITION TRANSMITER. C/B A12 STILL CONNECTOR D11816 PIN 2 TO D40024P PIN 11. REF: WDM 27-53-21, SSM POPS OPEN. SLAVED IN NEW FSEU UNIT NO HELP. REMOVED AND REPLACED 27-53-21, SSM 27-52-11. REPAIRED WIRE 2009R-20 REF SWPM 20-10-13. PERFORMED OPERATIONAL CHECK OF THE FLAP SYSTEM REF 27-81-00 OPS CHECK GOOD

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