SDR 20000609SH018

Service difficulty report · Mount · Cessna 421C

Difficulty date: May 19, 2000
Submitted: June 9, 2000
Operation: General aviation
Aircraft: N5491G
Make and model: Cessna 421C
Aircraft serial: 421C0238
System (JASC): 7120 · Engine Mount Section
Part: Mount
Part number: 503403034
Condition: Cracked
Location: Lt Engine Bay
Part time: 5,233 hours
Component: Canted Bulkhead · Cessna
Component part number: 505403042
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

DURING ANNUAL INSPECTION, FOUND ONE INCH CRACK LEFT SIDE, AFT CORNER, LEFT ENGINE BAY, CANTED BULKHEAD TOP CAP. EXHAUST CORROSION IN THIS AREA WAS NOTED. PER AD 2000-01-16 EXHAUST SYSTEM, FOUND CRACKS ON EXHAUST COMPONENTS ALSO IN THIS AREA THAT MAY HAVE CONTRIBUTED TO THIS FAILURE. (X)

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