SDR HEED065802

Service difficulty report · Encoder

Difficulty date: December 20, 1999
Submitted: March 26, 2000
Operation: General aviation
System (JASC): 3416 · Altimeter, Barometric/Encoder
Part: Encoder
Part number: 80510800001
Condition: Failed
Location: Cockpit
Part time: 13 hours
Stage of operation: IN
Nature of condition: L
Precautionary procedure: K

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

What was found

ENCODER BAD FROM STOCK. WHEN INSTALLED IN AIRCRAFT N476X, UNIT WENT THROUGH THE CALIBRATION MODE OK BUT FAILED THE TEST MODE WITH AN ERROR CONFIGURATION OF NR 30. WHEN INSTALLED, AIRCRAFT N89H, THE CALIBRATION MODE CHECKED OK, BUT THE TEST MODE SHOWED ERROR CONFIGURATION NR 18 AND NR 30. REPLACED UNIT.