SDR ASAA2013012793767

Service difficulty report · Controller · Boeing 737890

Difficulty date: January 27, 2013
Submitted: January 29, 2013
Operation: Air carrier
Aircraft: N592AS
Make and model: Boeing 737890
Aircraft serial: 35190
Aircraft time: 19,123 hours, 6,075 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Controller
Condition: No Indication
Location: Nr 2
Stage of operation: IN
How discovered: V
Nature of condition: P
Precautionary procedure: K

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

What was found

ZONE TEMP CONTROLLER NR 2 HAS NO LIGHTS ILLUMINATED WHEN SELF TEST PRESSED. TROUBLESHOT IAW WDM 21-51-22. PERFORMED CONTINUITY CHECK FROM C15 OF D3860A TO CBC1161 AND READ 40 OHMS. REMOVED CONNECTOR D41822P AND PERFORMED GOOD CONTINUITY CHECK FROM D41822P TO CBC1161 AND DD41822J TO D3860A. RESEATED CONNECTOR D41822P AND PERFORMED GOOD CONTINUITY CHECK FROM C15 OF D3860A TO CBC1161. REINSTALLED ZONE TEMP CONTROLLER NR 2 AND PERFORMED GOOD INSTALLATION TEST. REF WDM 21-51-22, AMM 21-61-20.