SDR 99ZZZX461

Service difficulty report · Screw · Dorner DO328100

Difficulty date: January 12, 1999
Submitted: March 26, 2000
Operation: General aviation
Make and model: Dorner DO328100
Propeller: Hartzl HDE6C3B
System (JASC): 6111 · Propeller Blade Section
Part: Screw
Part number: A32041
Condition: Broken
Location: Propeller
Part time: 2,026 hours
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

PROPELLER, S/N HL58, WAS RETURNED FOR SERVICE, BULLETINS 5 AND 14. AFTER DISASSEMBLY, INSPECTION REVEALED 1 BROKEN A3204-1 PRELOAD SET SCREW. THE B-3368 LOCKNUT WAS STILL ATTACHED TO THE INBOARD SECTION OF THE A-3204-1 SCREW. THE SCREW WAS REMOVED, SENT TO HARTZELL ENGINEERING FOR EVALUATION AND REPLACED WITH NEW.