Service difficulty report · Pseu · Boeing 7673Y0

Difficulty date
October 4, 2026
Submitted
October 5, 2026
Operation
Air carrier
Aircraft
N1619A
Make and model
Boeing 7673Y0
Aircraft serial
26208
Aircraft time
87,019 hours, 17,403 cycles
Part
Pseu
Part number
849704
Part serial
481
Condition
Inoperative
Location
Zone 200
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

APPROX 1 HR AFTER T/O DURING CRUISE @ FL360, LEFT LANDING GEAR DISCRETE LIGHT ILLUMINATED. INTERMITTENT - RT LANDING GEAR DISCRETE LIGHT ILLUMINATED. IN FLIGHT DURING CRUISE, INTERMITTENT RT AMBER REV; NO ASSOCIATED EICAS MESSAGE.(<P>ANC MX PERFORMED FIM 32-09 FT 804, CHECKED PROX SWITCHES FOR PROPER CLEARANCE AND CLEANLINESS. PERFORMED PSEU TARGET TEST FOR ALL RELATED GEAR PROX SWITCHES. ALL TESTS OK, SUSPECT INTERMITTENT PSEU FAULT.</P> / <P>LP 2029603 P2: REF FIM 78-36-805, CHECKED PROX SWITCHES FOR PROPER CLEARANCE AND CLEANLINESS. PERFORMED PSEU TARGET TEST FOR ALL RIGHT ENGINE T/R PROX SWITCHES. ALL TESTS OK, SUSPECT INTERMITTENT PSEU FAULT.</P> / <P>LP 2029604 M4: AFTER BLOCK IN, STATUS MSG €ŒLDG GEAR MONITOR€? APPEARED. R&R PSEU IAW AMM 32-09-04. PERFORMED PSEU GROUND TEST. TEST OK, SUSPECT INTERNAL LOGIC CARD #3 CAUSING T/R AND LANDING GEAR INDICATION ISSUES. NO FURTHER DEFECTS NOTED.</P>)

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