Service difficulty report · Pseu · Boeing 7478F

Difficulty date
April 12, 2023
Submitted
April 14, 2023
Operation
Air carrier
Aircraft
N863GT
Make and model
Boeing 7478F
Aircraft serial
67150
Aircraft time
571 hours, 120 cycles
Part
Pseu
Part number
856920
Part serial
S972
Condition
Unknown
Stage of operation
CL
How discovered
V
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

ITEM 1: DURING CLIMB OUT AFTER GEAR RETRACTION, THE UPPER EICAS DISPLAYED CROSS HATH (HATCH) INDICATING GEAR IN TRANSIT. ITEM 9: REPLACED PSEU PER MCC REQUEST(<P>ITEM 1: VERIFIED FAULT. FOUND LAST FLT LEG CMC MESSAGE 32707, 667 (32667) "BOTH ALT & PRIM RH WLG UPLOCK TARGET FAIL", CHECKED & FOUND BOTH S1639 & S404 CLEARANCE OUT OF LIMIT. PERFORMED ADJUSTMENT OF BOTH SENSORS PER 32-61-21-01. PSEU GROUND TEST PASS PER AMM 32-09-03. ITEM 9: R/R PSEU IAW AMM 32-09-03 REV 41. OPS CHECK NORMAL</P>)

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