Service difficulty report · Door · Doug MD11F

Difficulty date
April 7, 2019
Submitted
April 10, 2019
Operation
Air carrier
Aircraft
N279UP
Make and model
Doug MD11F
Aircraft serial
48573
Aircraft time
73,926 hours, 14,059 cycles
Part
Door
Condition
Erratic
Location
L1
Stage of operation
IN
How discovered
9
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

L-1 ENTRY DOOR ERRATIC OPERATION INTERMITTENTLY OPERATES IN OPPOSITE OF COMMANDED POSITION AND INTERMITTENLTY SIEZES UP. WILL NOT GO UP OR DOWN . CAN HEAR MOTOR "HUM"Ï¿½AFTER SWITCH COMMANDED OFF.FOUND 115V MISSING FROM RELAY R2-177, LEGS A3 AND C1, REMOVED AND REPLACED R2-177 REF WDM 52-11-01, SWPM 20-20-03 NO HELP. R&R'D L2 DOOR ACTUATOR PER MD11 AMM 52-11-01. OPS NORMAL IPC 52-11-01-20.

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