Service difficulty report · Sequence Valve · Boeing 74746NF

Difficulty date
April 26, 2023
Submitted
May 1, 2023
Operation
Air carrier
Aircraft
N451PA
Make and model
Boeing 74746NF
Aircraft serial
30809
Aircraft time
93,069 hours, 15,704 cycles
Part
Sequence Valve
Part number
2670296
Part serial
2001
Condition
Unknown
Stage of operation
TO
How discovered
V
Nature of condition
J, Z
Precautionary procedure
A

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

What was found

LOG PAGE 1779113 ITEM # 2 NOSE GEAR FAIL TO FULLY RETRACT AND STOW.(<P>REF 744 AMM 32-34-08. PERFORMED TROUBLESHOOTING AND REPLACED NOSE GEAR DOOR OPERATED SEQUENCE VALVE AS PER 744 AMM 32-34-05/401, OPS CHECKED NIL EFFECTIVE. LP 1779115 ITEM #7: AMM 32-34-00/001 CONTINUE T/S & REPLACED NOSE GEAR LOCK ACTUATOR AS PER 744 AMM 32-34-03/401, STILL NIL EFFECTIVE. FURTHER T/S AND REPLACED NOSE LANDING GEAR OPERATED SEQUENCE VALVE AS PER 744 AMM 32-34-07/401. LOG PAGE ITEM #8: NOSE LANDING GEAR AND DOOR EXTENSION AND RETRACTION OPERATIONAL CHECKED GOOD AS PER 744 AMM 32-34-00/501. SYSTEM OKAY TO RETURN TO SERVICE.</P>)

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