SDR SWIA971367

Service difficulty report · Ahrs · Emb EMB120ER

Difficulty date: January 8, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N292SW
Make and model: Emb EMB120ER
Aircraft serial: 120319
Engine: Pwa PW118B
System (JASC): 3425 · Integrated Flight System
Part: Ahrs
Condition: Failed
Location: Cockpit
Stage of operation: CR
Nature of condition: O
Precautionary procedure: A

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

What was found

TOTAL AHRS FAILURE EHSI, EADI. DIVERTED TO PSP. REPLACED RELAYS K0395, K0397, K0394 AND K0396. TESTED AHRS IAW MM 34-21-00 AND PERFORMED OPERATIONAL TEST OF 70 PERCENT SWITCHING RELAYS, TEST GOOD. BACK UP BATTERY TEST GOOD IAW MM 24-00-00.

More about the Emb EMB-120ER