SDR 8PCR20151001002

Service difficulty report · Nut · Cessna 402C

Difficulty date: October 1, 2015
Submitted: October 1, 2015
Operation: Air carrier
Aircraft: N256CA
Make and model: Cessna 402C
Aircraft serial: 402C0606
Engine: Cont TSIO520VB
Engine time: 955 hours
System (JASC): 8520 · Reciprocating Engine Power Section
Part: Nut
Part number: 652541
Condition: Fractured
Location: Engine
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 ROUTINE INSPECTION, A THRU-BOLT NUT, TWELVE POINT PN 652541, WAS FOUND FRACTURED & LAYING IN THE BOTTOM OF THE ENG COWLING. THERE WERE NO SIGNS OF CORROSION ON THE NUT. THE ENG WAS REMOVED TO BE DISASSEMBLED, INSPECTED & OVERHAULED. THE NUT WAS RETURNED TO THE ENG MFG FOR FURTHER EXAMINATION.

More about the Cessna 402C