SDR CA101206016

Service difficulty report · Cylinder Head · Dhav DHC2MKI

Difficulty date: October 29, 2010
Submitted: March 15, 2011
Operation: Air carrier
Make and model: Dhav DHC2MKI
Aircraft time: 14,023 hours
Engine: Pwa R985AN14B
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Cylinder Head
Part number: CH90ER
Condition: Cracked
Location: Engine
Stage of operation: TO
How discovered: O
Nature of condition: E
Precautionary procedure: C

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

What was found

(CAN) ON TAKEOFF, PILOT EXPERIENCED VIBRATION AND DIFFERENT ENGINE RUNNING SOUND, THROTTLED BACK AND RETURNED TO DOCK, AIRCRAFT REMOVED FROM WATER. VISUAL INSPECTION FOUND NR 2 CYLINDER HEAD CRACKED. CYLINDER HEAD SEPARATED FROM CYLINDER DURING REMOVAL, CYLINDER REPLACED. TESTED RUN, ALL ENGINE INDICTORS WITHIN LIMITS, AIRCRAFT RETURNED TO SERVICE.