Service difficulty report · Bypass Valve · Boeing 767424ER

Difficulty date
January 3, 2020
Submitted
January 6, 2020
Operation
Air carrier
Aircraft
N59053
Make and model
Boeing 767424ER
Aircraft serial
29448
Aircraft time
83,069 hours, 11,651 cycles
Part
Bypass Valve
Part number
3910028104
Condition
Malfunctioned
Location
Nlg
Stage of operation
CL
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

GEAR DISAGREE AND NLG WILL NOT RETRACT. TOMC CONTACT TOMC TO CLEAR UNLOCKING T/S PER FIM 32-34-00-715-001. R&R NLG SEL BYPASS VLV. LEAK CK''D OK REF AMM 32-31-04. NLG EEXTENSION & RETRACTION PERFORMED IAW AMM 32-34-00715-001. OPS CK''D GOOD. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1760686 SN OFF 0361 IPC REFERENCE # VERIFIED P/N FOR CONFIGURATION AND FUNCTIONAL/OPS CK AND INSTALLATION AND SECURITY CK OK. VALVE, NLG, SEL OFF 25-3231-9-0004 0361 ON 27-3221-9-0012 0434