Service difficulty report · Electronic Unit · Boeing 7474KZF

Difficulty date
October 2, 2026
Submitted
October 5, 2026
Operation
Air carrier
Aircraft
N406KZ
Make and model
Boeing 7474KZF
Aircraft serial
36133
Aircraft time
66,391 hours, 11,940 cycles
Part
Electronic Unit
Part number
856920
Part serial
5697
Condition
Faulted
Location
Zone 200
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 LEVER WOULDN'T COME UP AFTER DEPARTURE(<P>REMOVED AND REPLACED PROX SWITCH ELECTRONICS UNIT PER AMM 32-09-03/501. PERFORMED GROUND TEST OF PSEU SYSTEM PER AMM 32-61-00. TEST PASSED, NO FURTHER FAULTS AT THIS TIME. </P>)

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