Service difficulty report · Switch · Boeing 7478F

Difficulty date
December 5, 2023
Submitted
December 5, 2023
Operation
Air carrier
Aircraft
N625UP
Make and model
Boeing 7478F
Aircraft serial
65782
Aircraft time
11,670 hours, 1,802 cycles
System (JASC)
5200 · Doors
Part
Switch
Part number
1EN2966
Condition
Intermittent
Location
Unknown
Stage of operation
CL
How discovered
9
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

ON CLIMB OUT 3000-4000 WE RECEIVED CARGO DOOR MAIN EICAS MSG ACFT DEPRESSURIZED PER CHECKLIST. OII 2 R/R MD SIDE CARGO DOOR S1233 SWITCH PER AMM 52-71-01/401. ADJUSTMENT VERIFIED PER AMM 52-71-00/501 AND REF WDM 52-71-14 & IFIM 52-32-00-810-821. WIRING I/R CHECK BETWEEN S2254 TERM 1 & 2 TO DX225E PIN 3 & 4 PERFORMED. RESULTS SATIS. OPS CHK SEVERAL TIME FOR MD SIDE CARGO DOOR AS PER AMM 52-32-00/501. MD SIDE CARGO DOOR INDICATION NORMAL ON EICAS AND NO RELATED MSG ON CMC. MEL 52-71-1-1 CLEARED, DMP REVERSED AND PLACARD REMOVED.

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