SDR CALA2013110500804

Service difficulty report · Sensor · Boeing 777224

Difficulty date: November 4, 2013
Submitted: November 5, 2013
Operation: Air carrier
Aircraft: N79011
Make and model: Boeing 777224
Aircraft serial: 29859
Aircraft time: 71,977 hours, 7,389 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Sensor
Part number: 25215190001
Part serial: 2092
Condition: Failed
Location: Ac Pack
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: J, A

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

What was found

RT PACK FAILED APPROXIMATELY 10 MIN AFTER TAKEOFF. APPLIED APPROPRIATE CHECKLIST PROCEDURE. PACK REMAINED FAILED. TROUBLESHOT IAW FIM 21-51-00-810-830 & HAD FAULT CODE 21-24302. R-FCV OPERATIONS CHECKED GOOD AS DID WIRING IAW FIM 21-51-00. R & R AIR SUPPLY FLOW SENSOR PACK IAW FIM & MM 21-51-03-400-801. OPERATIONS CHECKED GOOD. ROTABLE PARTS CHANGE WAS INDICATED - TT 0938222 SN OFF 02092 SENSOR, AIR SUPPLY OFF 25-2151-9-0001 2092 ON 25-2151-9-0001 6109.