Service difficulty report · Controller · Boeing 7673S1

Difficulty date
May 31, 2019
Submitted
June 3, 2019
Operation
Air carrier
Aircraft
N640GT
Make and model
Boeing 7673S1
Aircraft serial
25221
Aircraft time
88,457 hours, 18,800 cycles
Part
Controller
Condition
Malfunctioned
Location
Lt A/C Pack
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT PACK TEMP EICAS MESSAGE THROUGH 10,000 FT. ACCOMPLISHED FIM 21-51 TREE 803 AND PACK TEMP CONTROLLER BITE FAULTED. RAM AIR EXHAUST ACTUATOR; RESET CONTROLLER AND RE-BIT. OPS CHECKS OK.

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