Service difficulty report · Trunnion Pin · Boeing 7377*

Difficulty date
November 16, 2010
Submitted
March 15, 2011
Operation
Air carrier
Make and model
Boeing 7377*
Aircraft time
23,937 hours
Engine
Ge CFM567B24
Part
Trunnion Pin
Part number
161A11881
Condition
Worn
Location
Lt Mlg
Part time
27,099 hours
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

DURING A PHASE 9 CHECK, WHILE ACCOMPLISHING THE LUBRICATION OF THE MLG TRUNNION PINS THE FWD LT MLG TRUNNION PIN WOULD NOT ACCEPT GREASE. UPON INVESTIGATION THE LT FWD TRUNNION PIN SHOWED EVIDENCE OF MISSING CHROME ON THE SPHERICAL BEARING. THE TRUNNION PIN P/N 161A1188-1 WAS REPLACED IAW AMM CH 32-11-83.

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