SDR FDEA201112085211

Service difficulty report · Coalescer Bag · Airbus A300B4622R

Difficulty date: December 8, 2011
Submitted: December 8, 2011
Operation: Air carrier
Aircraft: N741FD
Make and model: Airbus A300B4622R
Aircraft serial: 611
Aircraft time: 47,826 hours, 20,105 cycles
System (JASC): 2170 · Humidity Control System
Part: Coalescer Bag
Condition: Odor
Location: Nr 2 A/C Pack
Stage of operation: CR
How discovered: O
Nature of condition: B, J
Precautionary procedure: A

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

What was found

NR 2 PACK FLOW BECAME UNSTABLE IN CRUISE, LOW FLOW ADVISORY, INLET TEMPS VARYING WILDLY. NR 1 PACK LOW FLOW INDICATION AFTER SEVEAL HOURS OF NORMAL USE. FAINTLY ODD PACK ODOR ACOMPANIED PACK ADVISORY INLET TEMPS NR 1-20C, NR 2-60C. NR 1 PACK VALVE DISAGREE/CLOSED AFTER START. AFTER SEVERAL MINUTES AND SEVERAL RESETS, PACK VALVE OPENED, OK. REPLACED NR 2 PACK COALESCER BAG. RAN PACK WITH ENGINE AIR PACK OPS CHECKED OK IAW AMM 21-51-16-03 & AMM 21-11-11-04.

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