Service difficulty report · Switch · Boeing 7378H4

Difficulty date
June 14, 2026
Submitted
July 22, 2026
Operation
Air carrier
Aircraft
N8504G
Make and model
Boeing 7378H4
Aircraft serial
38812
Aircraft time
31,910 hours, 15,962 cycles
Part
Switch
Condition
Out Of Adjust
Location
Zone 800
Stage of operation
CL
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

WITH LANDING GEAR COMMANDED UP, NLG, LT GEAR AND RT GEAR DID NOT RETRACT. FOUND MANUAL GEAR EXTENSION ACCESS DOOR DOES NOT LOCK PROPERLY, ADJUSTED THE DOOR AND PERFORMED SUCCESSFUL MANUAL EXTENSION SYS ACCESS DOOR SWITCH ADJUSTMENT & WIRING CHK BETWEEN PIN 2 OF D11734 AND C1432L MULTIMETER READS OPEN WITH DOOR CLOSED AND 56.7 OHMS WITH THE DOOR OPEN) PER AMM 32-34-00 AND WDM 32-35-11.

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