Service difficulty report · Cylinder · Amrgen AA5B

Difficulty date
September 22, 2019
Submitted
September 27, 2019
Operation
General aviation
Aircraft
N28991
Make and model
Amrgen AA5B
Aircraft serial
AA5B0925
Aircraft time
2,225 hours
Engine
Lyc O360A4K
Engine time
2,225 hours
Propeller
Snsnch 76EM8
Part
Cylinder
Part number
AEL65102
Condition
Broken
Location
Engine
Part time
347 hours
Stage of operation
CR
How discovered
O
Nature of condition
E, K
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FRONT PILOT SIDE CYLINDER (#2?) BROKE APART IN FLIGHT. I'M NOT SURE WHICH CYLINDER SERIAL NUMBER BROKE, BUT IT IS ONE OF: 28520-16, 28279-14, 28387-30, 28415-23.