Service difficulty report · Shutoff Valve · Doug MD11F

Difficulty date
June 9, 2021
Submitted
June 9, 2021
Operation
Air carrier
Aircraft
N285UP
Make and model
Doug MD11F
Aircraft serial
48457
Aircraft time
103,174 hours, 19,805 cycles
Part
Shutoff Valve
Condition
Out Of Tolerance
Location
Stab Trim
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

INSPECTION TYPE:NA**ATB-NO EMERG DECL'D-NO EQUIP USED-LANDED UNEVENTFULLY**STAB OUT OF TRIM LEVEL 2 ALERT UPON AUTOPILOT ENGAGEMENT. RAN CHECKLIST AND CAUTION REMAINED. A/P 2 WILL STAY ENGAGED. ATTEMPTED AP 1 ENGAGEMENT WHICH RESULTS IN IMMEDIATE DISCONNECT WITH PITCH UP MOMENT.C/O T/S IAW FIM 22-00-00-810-801 AND T-17427, FOUND LIB ELEV ACT S/O VLV (S2-729) OUT OF RANGE. R/R SAME IAW AMM 27-30-00-830-801. ADDITIONALLY FOUND LOB ELEV IND 1 UNIT TOO HIGH. RIGGED IAW AMM 27-30-00-830-801, OPS CHK SATIS. C/O AFS LAND IAW AMM 22-00-02-700-801 ON BOTH FCC'S. ALL TEST PASS.

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