Service difficulty report · Rod · Doug MD11F

Difficulty date
November 28, 2018
Submitted
November 29, 2018
Operation
Air carrier
Aircraft
N592FE
Make and model
Doug MD11F
Aircraft serial
48550
Aircraft time
81,196 hours, 17,991 cycles
Part
Rod
Condition
Sheared
Location
Nr 1 Engine
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

COMPRESSOR STALL CLIMBING OUT OF 12,000 FT NR 1 ENG FL330 2ND COMPRESSOR STALL. WHILE ON DESCENT FOR LANDING OBSERVED THE FOLLOWING AT 6000 NR 1 EGT 512 EGT, 85% N1, NR 2 38 EGT, 77 %, NR 3 351 EGT 77%. CREW DEBRIEF, NR 2 ENG EGT WAS 358 NOT 38. NR 1 ENG THROTTLE NEEDED TO BE RETARDED MORE THAN 1 KNOB DUE TO NR 1 ENG N2 WAS HIGHER THAN ENG'S NR 2 & NR 3 AND NR 1 ENG N1 WAS LOWER THAN ENG'S NR 2 & NR 3 N1. NR 1 ENG EGT WAS HIGHER THAN ENG'S 2 & 3, NO ENG VIBRATION FELT. DURING VSV GVI INSPECTION FOUND ON THE RT SIDE ON THE VSV LEVER ASSY AFT MOST BEARING ROD SHEARED REF CF6-80C2 IPC 72-0-02 FIG 25 ITEM 110 DETAIL "E".

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