SDR 96ZZZX4967

Service difficulty report · Ammeter

Difficulty date: September 10, 1996
Submitted: March 26, 2000
Operation: General aviation
System (JASC): 2437 · DC Indicating System
Part: Ammeter
Part number: 3E13898
Condition: Mismarked
Location: Prop Deice
Component: Bfgoodrich
Stage of operation: IN
Nature of condition: W
Precautionary procedure: K

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

What was found

AMMETER FOR PROPELLER DEICE SYSTEM, PIPER PN 548-084, APPEARS MIS-MARKED. OLD UNIT GREEN ARC IS FROM 20-24 AMPS. NEW UNIT MARKED 17-24 AMPS. NORMAL DRAW ON SYSTEM IS 17-18 AMPS. OLD METER SHOWS 17 AMPS, BUT THAT IS BELOW GREEN ARC, WHICH CAUSES PILOTS TO SQUAWK SYSTEM, EVEN THOUGH IT WORKS PROPERLY.