SDR 97ZZZX2578

Service difficulty report · Crankcase · Univac GC1B

Difficulty date: May 1, 1997
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N2403B
Make and model: Univac GC1B
Aircraft serial: 3703
Engine: Cont IO360C
System (JASC): 8520 · Reciprocating Engine Power Section
Part: Crankcase
Condition: Cracked
Location: Over Nr 2 Cyl
Stage of operation: IN
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

THIRTY HOURS AFTER REPAIR AND OVERHAUL OF ENGINE, CRANKCASE WAS FOUND TO HAVE A CRACK ON UPPER AREA ABOVE NR 2 CYLINDER (NOT A STUD HOLE CRACK) EXTENDING 1 INCH FORE AND AFT APPROX 1 INCH INBOARD OF CYLINDER MOUNT AREA. CYLINDERS ALSO FOUND NOT TO HAVE BEEN OVERHAULED. ENGINE DISASSEMBLED AND FOUND NUMEROUS OTHER DISCREPANCIES. ( NO COTTER PIN, ETC.). SB 96-13 NOT SIGNED OFF. AD 92-04-09 NOT C/W.