Service difficulty report · Actuator · Boeing 747446

Difficulty date
July 22, 2023
Submitted
July 26, 2023
Operation
Air carrier
Aircraft
N745CK
Make and model
Boeing 747446
Aircraft serial
26361
Aircraft time
93,779 hours, 13,843 cycles
Part
Actuator
Part number
723D1009
Part serial
790
Condition
Unserviceable
Location
Zone 800
Part time
93,870 hours, 13,859 cycles
Stage of operation
UK
How discovered
O
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

DOOR UPPER DECK FLIGHT LOCK LEFT. TRANSFERRED TO DMI #100136758 IN ACCORDANCE WITH KA MEL 52-23-3-2 CATEGORY C PLACARDS INSTALLED M PROCEDURE COMPLIED WITH ACTUATOR NOT REMOVED. AS PER LOG PAGE 100136761, M PROCEDURE COMPLIED WITH IAW MEL 52-23-3-2 DMI 100136758 CONTINUES. AS PER LOG PAGE 100136764, 100136767, 100136770, 100136773, 100136776, 100136779, 100136785, 100136788, 100136791, 100136794, 100136797, 100012510, 100012513, 100012516, 100012519, M SPECIAL PROCEDURE COMPLIED WITH IAW MEL 52-23-3-2 DMI 100136758 CONTINUES. AS PER LOG PAGE 100012519 LINE ITEM 100012520, REMOVED AND REPLACED ACTUATOR LOCK ASSY IAW B747-400 AMM 52-23-08 ALL CHECKS GOOD AT THIS TIME THIS CLEARS DMI 100136758 PLACARDS REMOVED.