Service difficulty report · Trunnion · Swrngn SA226TC

Difficulty date
November 21, 2009
Submitted
January 19, 2010
Operation
General aviation
Make and model
Swrngn SA226TC
Aircraft time
31,097 hours
Engine
Garrtt TPE33110UA
Part
Trunnion
Part number
5451001001
Condition
Corroded
Location
Nlg
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

(CAN) FOUND CORROSION PITTING IN TRUNNION BORES ON BOTH SIDES OF NLG TRUNNION, WHICH HOUSE THE DRAG BRACE PINS. PITTING IS 0.030 INCHES DEEP LONGITUDINALLY IN END OF BORE AND 0.045 INCHES DEEP LATERALLY AT END OF BORE, AROUND THE BORE RADIUS FOR APPROXIMATELY 0.4 INCHES. THERE ARE NO PUBLISHED INSPECTION REQUIREMENTS SPECIFIC TO THIS AREA. (TC NR 20091125007)