SDR 97ZZZX21

Service difficulty report · Bearing Block · Piper PA23250

Difficulty date: November 12, 1996
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N22TD
Make and model: Piper PA23250
Aircraft serial: 277854103
System (JASC): 2740 · Stabilizer Control System
Part: Bearing Block
Part number: 1604000
Condition: Worn
Location: Stab
Stage of operation: DE
Nature of condition: E, F
Precautionary procedure: O

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

What was found

STABILATOR VIBRATION, FLUTTER IN DESCENT (AT HIGH SPEED) TRACED TO MOVEMENT IN ABOVE PIVOT JOINT. HOLE IN BLOCK, BUSHING, AND BOLT ALL SEVERELY WORN. PLAY IN JOINT NOT IMMEDIATELY EVIDENT BECAUSE OF SPRING LOADING ON BELLCRANK. RT SIDE NOT WORN. WEAR ALLOWS TAB TO MOVE AND FLUTTER, INDUCING MOVEMENT IN STAB.

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