SDR HALA2015122600253

Service difficulty report · Warning Message · Boeing 7673CB

Difficulty date: December 26, 2015
Submitted: December 28, 2015
Operation: Air carrier
Aircraft: N588HA
Make and model: Boeing 7673CB
Aircraft serial: 33466
Aircraft time: 50,281 hours, 9,074 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Warning Message
Condition: False Activation
Location: Lt A/C Pack
Stage of operation: DE
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

AFTER START OF DESCENT WHEN THRUST REDUCED TO IDLE, LT PACK TEMP. LT PACK OFF EICAS MSG DISPLAYED. PERFORMED QRH - STB "N" AND RESET PACK AFTER 5 MIN PACK RESTORED. PERFORMED LT PACK TEMP CONTROLLER BITE TEST, IAW AMM 21-51-14-705-035, NO FAULTS NOTED. RAN PACK .5 HR, OPS CKS NORMAL, OK TO CONTINUE.

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