Service difficulty report · Transmission · Boeing 7377H4

Difficulty date
June 24, 2023
Submitted
June 27, 2023
Operation
Air carrier
Aircraft
N777QC
Make and model
Boeing 7377H4
Aircraft serial
30592
Aircraft time
73,356 hours, 43,741 cycles
Part
Transmission
Condition
Stopped
Location
Zn 200 Fus Top
Stage of operation
DE
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

FLAP ASYMMETRY ON DESCENT FLAPS LOCKED UP ACMS DATA SHOWS THE LEFT POSITION TRANSMITTER TO HAVE STOPPED WHILE GOING TO FLAPS 5 CAUSING OUR LOCKOUTFLAP NEEDLE SPLIT OF ABOUT 2 NEEDLES WIDTH<[01] R&R #2 FLAP TRANSMISSION AND JACKSCREW PER MM 27-51-41

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