SDR HYIA20191014001

Service difficulty report · Fitting · Cessna 402C

Difficulty date: October 11, 2019
Submitted: October 14, 2019
Operation: Air carrier
Aircraft: N3292M
Make and model: Cessna 402C
Aircraft serial: C4020304
Aircraft time: 35,822 hours, 20,971 cycles
System (JASC): 5740 · Wing, Attach Fittings
Part: Fitting
Part number: 082255045
Condition: Corroded
Location: Lt Wing
Part time: 35,822 hours, 20,971 cycles
Stage of operation: IN
How discovered: V
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

WHILE PERFORMING SPECIAL INSPECTION 402-22 IAW INSPECTION PROGRAM MANUAL, AND MM 5-20-01, CORROSION WAS VISUALLY IDENTIFIED ON THE LEFT WING'S, FORWARD SPAR'S, UPPER, AFT, WING FITTING (P/N 082255-45). THIS CORROSION IS ON THE UPPER HORIZONTAL FLANGE OF THE FITTING MEASURING APPROXIMATELY 1.360 INCHES LONG, AND .540 INCHES WIDE, WITH A MAX DEPTH OF .061 INCHES DEEP. THE FITTING WAS REMOVED AND REPLACED USING NEW PARTS.

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